GAF Chemicals Corp
GAF ChemicActive Patents
0
Total Holdings
143
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB824215A | Water soluble iodine polymer complexes | Expired / Lapsed | 1957-06-20 | — | 0 | Details |
| GB650152A | A process of improving the slippage characteristics of film… | Expired / Lapsed | 1948-09-14 | — | 0 | Details |
| US4135007A | Radiation curable coating composition comprising an acryl u… | Expired / Lapsed | 1977-12-29 | 1979-01-16 | 6 | Details |
| US3689439A | Process for preparing a crosslinked porous polyvinyl pyrrol… | Expired / Lapsed | 1971-04-05 | 1972-09-05 | 0 | Details |
| US3507583A | Pump for liquids | Expired / Lapsed | 1967-10-04 | 1970-04-21 | 0 | Details |
| US3372201A | Alkoxylation of secondary alcohols | Expired / Lapsed | 1966-06-17 | 1968-03-05 | 2 | Details |
| US3330784A | Optical effect in acrylate polymers by an internal foamed s… | Expired / Lapsed | 1964-03-17 | 1967-07-11 | 2 | Details |
| US3301157A | Thermal developing apparatus | Expired / Lapsed | 1964-06-08 | 1967-01-31 | 2 | Details |
| US3277009A | Water-soluble package and method for making and using same | Expired / Lapsed | 1961-10-03 | 1966-10-04 | 2 | Details |
| US3244633A | Liquid developers for developing electrostatic images | Expired / Lapsed | 1961-10-24 | 1966-04-05 | 2 | Details |
| US3171784A | Copolymer of vinyl pyrrolidone and vinyl acetate as aerosol… | Expired / Lapsed | 1956-11-09 | 1965-03-02 | 2 | Details |
| US3145637A | Diazotype development apparatus | Expired / Lapsed | 1960-07-12 | 1964-08-25 | 0 | Details |
| US3136755A | Insoluble polymeric-iodine complexes | Expired / Lapsed | 1960-12-01 | 1964-06-09 | 4 | Details |
| US3119835A | Conditioning of phthalocyanine pigments | Expired / Lapsed | 1962-02-20 | 1964-01-28 | 2 | Details |
| US3102202A | Photometric instruments | Expired / Lapsed | 1960-04-12 | 1963-08-27 | 2 | Details |
| US3099558A | Photopolymerization of vinyl monomers by means of a radiati… | Expired / Lapsed | 1959-06-26 | 1963-07-30 | 2 | Details |
| US3063968A | Polymerization of 2-p-dioxanone | Expired / Lapsed | 1960-06-15 | 1962-11-13 | 2 | Details |
| US3063967A | Polymers of 2-p-dioxanone and method for making same | Expired / Lapsed | 1959-10-07 | 1962-11-13 | 2 | Details |
| US3062737A | Dehydration process | Expired / Lapsed | 1959-12-28 | 1962-11-06 | 2 | Details |
| US3061569A | Process of reacting a polymeric n-vinyl lactam with a polym… | Expired / Lapsed | 1958-12-10 | 1962-10-30 | 2 | Details |
| US3050390A | Photopolymerization of vinyl monomers by means of silver co… | Expired / Lapsed | 1958-10-06 | 1962-08-21 | 2 | Details |
| US2989360A | Continuous dyeing process | Expired / Lapsed | 1957-05-31 | 1961-06-20 | 2 | Details |
| US2976148A | Antistatic backing layers for photographic film | Expired / Lapsed | 1957-01-02 | 1961-03-21 | 2 | Details |
| US2962825A | Portable viewing device | Expired / Lapsed | 1959-06-09 | 1960-12-06 | 0 | Details |
| US2941917A | Laminated polymer sheets | Expired / Lapsed | 1954-03-26 | 1960-06-21 | 2 | Details |
| US2938017A | Insoluble polymers of vinyl pyrrolidone and process for pro… | Expired / Lapsed | 1956-10-26 | 1960-05-24 | 2 | Details |
| US2931777A | Germicidal detergent compositions | Expired / Lapsed | 1956-08-16 | 1960-04-05 | 2 | Details |
| US2915430A | Method of controlling nematodes with n-acylpyrrolidones | Expired / Lapsed | 1958-09-30 | 1959-12-01 | 2 | Details |
| US2907670A | Pigment dispersions | Expired / Lapsed | 1957-03-22 | 1959-10-06 | 1 | Details |
| US2901457A | Process of reacting a polymeric n-vinyl lactam with a polym… | Expired / Lapsed | 1954-11-15 | 1959-08-25 | 2 | Details |
| US2888313A | Continuous dyeing process | Expired / Lapsed | 1956-07-23 | 1959-05-26 | 2 | Details |
| US2876210A | 2,2'-dihydroxy-4, 4'-substituted benzophenones as ultraviol… | Expired / Lapsed | 1954-02-10 | 1959-03-03 | 2 | Details |
| US2872433A | Stabilization of polymeric n-vinyl pyrrolidones with sulfur… | Expired / Lapsed | 1955-12-27 | 1959-02-03 | 2 | Details |
| US2853416A | Method of protecting plants by applying a pesticidal amount… | Expired / Lapsed | 1955-09-19 | 1958-09-23 | 2 | Details |
| US2829573A | Selective double exposure prevention device | Expired / Lapsed | 1954-12-29 | 1958-04-08 | 0 | Details |
| US2826532A | Process of stabilizing polyvinyl pyrrolidone-iodine composi… | Expired / Lapsed | 1954-09-22 | 1958-03-11 | 0 | Details |
| US2811449A | Process for the clarification of vegetable beverages | Expired / Lapsed | 1954-12-30 | 1957-10-29 | 2 | Details |
| US2809958A | Polymerization procedures for 2-pyrrolidone | Expired / Lapsed | 1953-02-24 | 1957-10-15 | 2 | Details |
| US2799669A | Polymers of vinyl alkyl ethers | Expired / Lapsed | 1950-09-08 | 1957-07-16 | 2 | Details |
| US2791561A | Magnetic powders and method of making the same | Expired / Lapsed | 1950-04-27 | 1957-05-07 | 2 | Details |
| US2774709A | Polyoxyethylated alkyl phenol emulsification of insoluble h… | Expired / Lapsed | 1953-11-16 | 1956-12-18 | 2 | Details |
| US2767166A | Process for the preparation of chromed azo dyes derived fro… | Expired / Lapsed | 1952-01-31 | 1956-10-16 | 2 | Details |
| US2759975A | Mixed alkyl-benzyl-alkylol quaternary ammonium salts | Expired / Lapsed | 1952-05-28 | 1956-08-21 | 2 | Details |
| US2744040A | Process of preparing iron powder for magnetic cores | Expired / Lapsed | 1952-03-25 | 1956-05-01 | 2 | Details |
| US2740814A | Long chain alkyl-benzenesulfonamido-alkanol ethers | Expired / Lapsed | 1952-01-17 | 1956-04-03 | 2 | Details |
| US2706701A | Process for the preparation of iodinepolyvinylpyrrolidone b… | Expired / Lapsed | 1952-04-15 | 1955-04-19 | 2 | Details |
| US2693430A | Process for rendering textile materials water-repellent | Expired / Lapsed | 1952-01-17 | 1954-11-02 | 2 | Details |
| US2689799A | Cellulose ester compositions plasticized with polyesters of… | Expired / Lapsed | 1951-11-16 | 1954-09-21 | 2 | Details |
| US2683705A | Polymerization of alpha-chloroacrylates | Expired / Lapsed | 1952-05-16 | 1954-07-13 | 2 | Details |
| US2674604A | Fluorescent brighteners | Expired / Lapsed | 1951-11-15 | 1954-04-06 | 2 | Details |
| US2649834A | Optical feed-back densitometer | Expired / Lapsed | 1946-04-04 | 1953-08-25 | 0 | Details |
| US2618020A | Poly-n-vinyl pyrrole compound molding composition, molding … | Expired / Lapsed | 1945-02-02 | 1952-11-18 | 2 | Details |
| US2601212A | Heat resistant magnetic cores and method of making | Expired / Lapsed | 1948-11-09 | 1952-06-17 | 2 | Details |
| US2594514A | Comparison type densitometer | Expired / Lapsed | 1949-12-20 | 1952-04-29 | 0 | Details |
| US2593112A | Emulsifying agents | Expired / Lapsed | 1948-12-15 | 1952-04-15 | 2 | Details |
| US2577773A | Ternary detergent compositions | Expired / Lapsed | 1947-03-26 | 1951-12-11 | 1 | Details |
| US2576839A | Polymerization of alkylolamides of the acrylic acid series | Expired / Lapsed | 1945-10-16 | 1951-11-27 | 1 | Details |
| US2572229A | Electrically operated photographic shutter | Expired / Lapsed | 1947-09-16 | 1951-10-23 | 0 | Details |
| US2568894A | 4-benzoylresorcinol as an ultraviolet absorbent | Expired / Lapsed | 1949-09-15 | 1951-09-25 | 0 | Details |
| US2560839A | Detergent composition | Expired / Lapsed | 1947-07-24 | 1951-07-17 | 2 | Details |
| US2561243A | Comparison type densitometer and electronic measuring circu… | Expired / Lapsed | 1946-04-16 | 1951-07-17 | 0 | Details |
| US2555646A | Polymeric thermoreversible gels | Expired / Lapsed | 1947-05-02 | 1951-06-05 | 2 | Details |
| US2548845A | 4-hydroxy-2-alkylbenzimidazoles as azo coupling components … | Expired / Lapsed | 1948-12-16 | 1951-04-10 | 2 | Details |
| US2533166A | Process for polymerizing watersoluble polyacrylamides and p… | Expired / Lapsed | 1945-10-16 | 1950-12-05 | 2 | Details |
| US2527765A | Film mount | Expired / Lapsed | 1944-11-01 | 1950-10-31 | 0 | Details |
| US2522699A | Actuating means for photographic shutters | Expired / Lapsed | 1947-06-14 | 1950-09-19 | 0 | Details |
| US2522776A | Process of rendering synthetic rubber tacky | Expired / Lapsed | 1946-10-11 | 1950-09-19 | 4 | Details |
| US2522771A | Photographic silver halide emulsions | Expired / Lapsed | 1944-11-03 | 1950-09-19 | 2 | Details |
| US2514847A | Apparatus for measuring the width of flexible strip material | Expired / Lapsed | 1944-07-08 | 1950-07-11 | 0 | Details |
| US2500099A | Diazo sulfonate light-sensitive element containing a diketo… | Expired / Lapsed | 1945-12-20 | 1950-03-07 | 1 | Details |
| US2492702A | Process of sizing paper and product | Expired / Lapsed | 1939-06-16 | 1949-12-27 | 0 | Details |
| US2484001A | Motor field frame and method of fabrication | Expired / Lapsed | 1945-11-20 | 1949-10-04 | 0 | Details |
| US2478163A | Logarithmic photometer | Expired / Lapsed | 1944-12-30 | 1949-08-02 | 0 | Details |
| US2474700A | Diazotype sensitized papers having cellulose ether sizing | Expired / Lapsed | 1946-03-27 | 1949-06-28 | 0 | Details |
| US2447462A | A dye composition for color photography | Expired / Lapsed | 1944-08-31 | 1948-08-17 | 0 | Details |
| US2429587A | Modified vinyl alkyl ether polymers | Expired / Lapsed | 1944-12-30 | 1947-10-21 | 0 | Details |
| US2421500A | Registering punch | Expired / Lapsed | 1944-09-29 | 1947-06-03 | 0 | Details |
| US2417023A | Photoelectric electron multiplier tube photometer circuits | Expired / Lapsed | 1944-09-15 | 1947-03-04 | 0 | Details |
| US2413218A | Photographic apparatus | Expired / Lapsed | 1943-07-28 | 1946-12-24 | 0 | Details |
| US2406702A | Sensitometer | Expired / Lapsed | 1944-10-27 | 1946-08-27 | 0 | Details |
| US2406716A | Direct reading densitometer | Expired / Lapsed | 1942-07-29 | 1946-08-27 | 0 | Details |
| US2390903A | Fabric and process of producing it | Expired / Lapsed | 1942-02-25 | 1945-12-11 | 0 | Details |
| US2375084A | Liquid level measuring apparatus | Expired / Lapsed | 1943-06-23 | 1945-05-01 | 0 | Details |
| US2356079A | Animalizing of cellulosic materials | Expired / Lapsed | 1940-03-29 | 1944-08-15 | 0 | Details |
| US2354108A | Copying apparatus | Expired / Lapsed | 1941-03-28 | 1944-07-18 | 0 | Details |
| US2352983A | Conveying apparatus | Expired / Lapsed | 1942-01-30 | 1944-07-04 | 0 | Details |
| US2345485A | Dyestuff salts | Expired / Lapsed | 1940-01-26 | 1944-03-28 | 0 | Details |
| US2323739A | Photographic camera | Expired / Lapsed | 1941-03-17 | 1943-07-06 | 0 | Details |
| US2320722A | Magazine loaded with different sorts of films | Expired / Lapsed | 1940-09-12 | 1943-06-01 | 0 | Details |
| US2315829A | Cooling apparatus | Expired / Lapsed | 1942-03-11 | 1943-04-06 | 0 | Details |
| US2316057A | Textile material | Expired / Lapsed | 1939-05-16 | 1943-04-06 | 0 | Details |
| US2307973A | Dyeings | Expired / Lapsed | 1938-05-12 | 1943-01-12 | 0 | Details |
| US2306924A | Hard infusible resinous condensation products | Expired / Lapsed | 1939-02-08 | 1942-12-29 | 0 | Details |
| US2303196A | Apparatus for compensating for incorrect reproduction of co… | Expired / Lapsed | 1940-09-26 | 1942-11-24 | 0 | Details |
| US2302805A | Composition for mothproofing | Expired / Lapsed | 1937-08-31 | 1942-11-24 | 0 | Details |
| US2300970A | Apparatus for printing subtractive multicolor images | Expired / Lapsed | 1941-03-06 | 1942-11-03 | 0 | Details |
| US2300566A | Process of preparing polymerization products | Expired / Lapsed | 1940-03-16 | 1942-11-03 | 0 | Details |
| US2300920A | Interpolymers of vinyl sulphonic acid with another vinyl co… | Expired / Lapsed | 1939-05-27 | 1942-11-03 | 0 | Details |
| US2296331A | Softener for halogen-containing high-molecular weight, orga… | Expired / Lapsed | 1939-04-18 | 1942-09-22 | 0 | Details |
| US2295628A | Apparatus for the reversal of color negatives | Expired / Lapsed | 1940-11-13 | 1942-09-15 | 0 | Details |
| US2292575A | Dyestuff intermediate products from bile acid amides | Expired / Lapsed | 1939-07-13 | 1942-08-11 | 0 | Details |
| US2288588A | Solvent for organic film-forming materials | Expired / Lapsed | 1939-03-08 | 1942-06-30 | 0 | Details |
| US2282264A | Process of producing substances having tanning action | Expired / Lapsed | 1939-03-08 | 1942-05-05 | 0 | Details |
| US2263598A | Interpolymerization product of vinyl acetate and crotonic a… | Expired / Lapsed | 1938-04-22 | 1941-11-25 | 0 | Details |
| US2257207A | Apparatus for the dry development of light sensitive materi… | Expired / Lapsed | 1938-06-23 | 1941-09-30 | 0 | Details |
| US2257186A | Process of removing metal oxides and preparations suitable … | Expired / Lapsed | 1938-02-09 | 1941-09-30 | 0 | Details |
| US2242490A | Nitrogenous condensation product from 1.2-alkylene imines | Expired / Lapsed | 1939-01-21 | 1941-05-20 | 0 | Details |
| US2240957A | Process for avoiding and rendering harmless the precipitate… | Expired / Lapsed | 1936-10-22 | 1941-05-06 | 0 | Details |
| US2239780A | Process for improving the properties of thermoplastic, film… | Expired / Lapsed | 1938-05-17 | 1941-04-29 | 0 | Details |
| US2226602A | Automatic setting device for shutters and diaphragms of pho… | Expired / Lapsed | 1938-01-18 | 1940-12-31 | 0 | Details |
| US2224022A | Maleic acid and fumaric acid derivatives | Expired / Lapsed | 1939-08-01 | 1940-12-03 | 0 | Details |
| US2219748A | Thioxane sulphur trioxide addition compound | Expired / Lapsed | 1939-03-07 | 1940-10-29 | 0 | Details |
| US2219006A | Addition products of 3, 4 dehydrocyclotetramethylene sulpho… | Expired / Lapsed | 1938-01-21 | 1940-10-22 | 0 | Details |
| US2215196A | Process of producing color on textile materials | Expired / Lapsed | 1937-09-14 | 1940-09-17 | 0 | Details |
| US2214446A | Photographic development of silver halide layers | Expired / Lapsed | 1939-05-06 | 1940-09-10 | 0 | Details |
| US2214072A | Apparatus for the reversal of photographic negatives | Expired / Lapsed | 1938-11-26 | 1940-09-10 | 0 | Details |
| US2214352A | Process for the production of condensation products contain… | Expired / Lapsed | 1936-06-17 | 1940-09-10 | 0 | Details |
| US2213477A | Glycol and polyglycol ethers of isocyclic hydroxyl compounds | Expired / Lapsed | 1936-11-18 | 1940-09-03 | 0 | Details |
| US2211976A | Process of imparting hydrophobic properties to cellulose fi… | Expired / Lapsed | 1937-09-28 | 1940-08-20 | 0 | Details |
| US2211001A | Oxalkyl derivatives of imidazolines | Expired / Lapsed | 1938-03-10 | 1940-08-13 | 0 | Details |
| US2203036A | Apparatus for measuring the color of light | Expired / Lapsed | 1938-12-03 | 1940-06-04 | 0 | Details |
| US2186852A | Photographic silver halide emulsions | Expired / Lapsed | 1937-11-23 | 1940-01-09 | 0 | Details |
| US2180335A | Process for hardening albuminous substances | Expired / Lapsed | 1937-07-16 | 1939-11-21 | 0 | Details |
| US2163776A | Copying camera | Expired / Lapsed | 1936-08-26 | 1939-06-27 | 0 | Details |
| US2150966A | Intensifying and fluorescent screen | Expired / Lapsed | 1935-10-19 | 1939-03-21 | 0 | Details |
| US2125162A | Manufacture of lenticular stencil film | Expired / Lapsed | 1936-06-09 | 1938-07-26 | 0 | Details |
| US2101710A | Apparatus for measuring the region of density of a negative | Expired / Lapsed | 1935-03-16 | 1937-12-07 | 0 | Details |
| US2089460A | Process for fastening a photographic material on a support … | Expired / Lapsed | 1934-01-31 | 1937-08-10 | 0 | Details |
| US2074647A | Manufacture of foils and artificial products | Expired / Lapsed | 1933-06-27 | 1937-03-23 | 0 | Details |
| US2045080A | Manufacture of molded articles | Expired / Lapsed | 1933-06-01 | 1936-06-23 | 0 | Details |
| US2044333A | Marking sound and moving picture film for the purpose of sy… | Expired / Lapsed | 1930-05-27 | 1936-06-16 | 0 | Details |
| US2015261A | Diaphragm for cameras | Expired / Lapsed | 1932-12-12 | 1935-09-24 | 0 | Details |
| US2006002A | Manufacture of photographic silver halide emulsion layers | Expired / Lapsed | 1933-11-24 | 1935-06-25 | 0 | Details |
| US1984481A | Apparatus for projecting lenticular films | Expired / Lapsed | 1930-11-12 | 1934-12-18 | 0 | Details |
| US1981102A | Photographic material and process of making the same | Expired / Lapsed | 1933-08-14 | 1934-11-20 | 0 | Details |
| US1977134A | Stop for motion picture apparatus | Expired / Lapsed | 1933-11-16 | 1934-10-16 | 0 | Details |
| US1968938A | Motion picture apparatus | Expired / Lapsed | 1932-03-16 | 1934-08-07 | 0 | Details |
| US1955170A | Photographic copying apparatus | Expired / Lapsed | 1932-01-21 | 1934-04-17 | 0 | Details |
| US1910294A | High gloss drying apparatus for photographic prints | Expired / Lapsed | 1930-03-25 | 1933-05-23 | 0 | Details |
| US1883997A | Tripod socket for cameras and the like | Expired / Lapsed | 1931-03-12 | 1932-10-25 | 0 | Details |
| US1860575A | Photographic objective | Expired / Lapsed | 1929-04-01 | 1932-05-31 | 0 | Details |
| US1738530A | Preparation of photosensitive photographic emulsions | Expired / Lapsed | 1928-08-11 | 1929-12-10 | 0 | Details |
| US1719711A | Photographic silver-halid emulsion | Expired / Lapsed | 1926-08-06 | 1929-07-02 | 0 | Details |