Hercules Powder Co
Hercules PActive Patents
0
Total Holdings
71
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3222437A | Process for simultaneously molding and expanding stereoregu… | Expired / Lapsed | 1962-06-18 | 1965-12-07 | 2 | Details |
| US3214503A | Uniaxial orientation of polypropylene film | Expired / Lapsed | 1962-09-28 | 1965-10-26 | 2 | Details |
| US3198645A | Finely divided nitrocellulose particles and manufacture and… | Expired / Lapsed | 1962-08-30 | 1965-08-03 | 2 | Details |
| US3142092A | Apparatus for simultaneously extruding and cooling tubular … | Expired / Lapsed | 1961-04-28 | 1964-07-28 | 1 | Details |
| US3131177A | Manufacture of water-soluble hydroxyalkyl cellulose ethers | Expired / Lapsed | 1960-04-13 | 1964-04-28 | 2 | Details |
| US3131176A | Manufacture of water-soluble hydroxyalkyl cellulose ethers | Expired / Lapsed | 1960-04-13 | 1964-04-28 | 2 | Details |
| US3113986A | Hydrogenation of unsaturated hydrocarbons | Expired / Lapsed | 1962-01-08 | 1963-12-10 | 2 | Details |
| US3101522A | Three-ply tweed yarn | Expired / Lapsed | 1960-12-01 | 1963-08-27 | 4 | Details |
| US3077468A | Insolubilization of polysaccharide ethers | Expired / Lapsed | 1960-12-22 | 1963-02-12 | 2 | Details |
| US3039840A | Process for manufacturing readily dyeable stereo regulated … | Expired / Lapsed | 1960-10-12 | 1962-06-19 | 1 | Details |
| US2998324A | Method of coating polypropylene | Expired / Lapsed | 1959-07-22 | 1961-08-29 | 2 | Details |
| US2983714A | Cross-linking of copolymers of ethylene and propylene | Expired / Lapsed | 1957-12-26 | 1961-05-09 | 2 | Details |
| US2938012A | Cross-linking of ethylene polymers with peroxide catalyst a… | Expired / Lapsed | 1958-03-07 | 1960-05-24 | 2 | Details |
| US2904502A | Method of cracking hydrocarbons | Expired / Lapsed | 1954-02-19 | 1959-09-15 | 2 | Details |
| US2891056A | Water-soluble allyl ethyl cellulose and its preparation | Expired / Lapsed | 1956-12-05 | 1959-06-16 | 2 | Details |
| US2884394A | Aqueous solutions of polyester resins prepared by reaction … | Expired / Lapsed | 1956-08-20 | 1959-04-28 | 2 | Details |
| US2826570A | Polyethylene composition and process of cross-linking | Expired / Lapsed | 1955-05-24 | 1958-03-11 | 2 | Details |
| US2826500A | Use of cationic-modified urea-formaldehyde resins in the ma… | Expired / Lapsed | 1954-12-30 | 1958-03-11 | 1 | Details |
| US2819256A | Composition of rubber and a di(arylalkyl) peroxide | Expired / Lapsed | 1954-06-09 | 1958-01-07 | 4 | Details |
| US2807975A | Vibratory packing machine | Expired / Lapsed | 1953-04-01 | 1957-10-01 | 0 | Details |
| US2725822A | Switch and method for blasting | Expired / Lapsed | 1952-03-29 | 1955-12-06 | 0 | Details |
| US2722492A | Insulated electrical conductor | Expired / Lapsed | 1954-08-17 | 1955-11-01 | 2 | Details |
| US2722528A | Preparation of finely divided cellulose plastics | Expired / Lapsed | 1951-05-08 | 1955-11-01 | 2 | Details |
| US2639239A | Heat-treated alkali-metal carboxymethyl cellulose and proce… | Expired / Lapsed | 1950-11-18 | 1953-05-19 | 4 | Details |
| US2624280A | Electric initiator | Expired / Lapsed | 1948-01-09 | 1953-01-06 | 2 | Details |
| US2623041A | Preparation of acid-soluble cellulose derivatives | Expired / Lapsed | 1949-12-23 | 1952-12-23 | 2 | Details |
| US2618632A | Mixed cellulose ether and preparation thereof | Expired / Lapsed | 1949-04-05 | 1952-11-18 | 2 | Details |
| US2572039A | Manufacture of cellulose ethers | Expired / Lapsed | 1949-11-04 | 1951-10-23 | 2 | Details |
| US2545314A | Hydrochloric acid recovery | Expired / Lapsed | 1943-02-12 | 1951-03-13 | 2 | Details |
| US2525276A | Method of cracking hydrocarbons | Expired / Lapsed | 1946-08-22 | 1950-10-10 | 2 | Details |
| US2513434A | Apparatus for the preparation of thermoplastic materials | Expired / Lapsed | 1946-12-10 | 1950-07-04 | 0 | Details |
| US2512338A | Preparation of cellulose ethers | Expired / Lapsed | 1947-04-29 | 1950-06-20 | 2 | Details |
| US2429490A | Detonator | Expired / Lapsed | 1945-10-12 | 1947-10-21 | 0 | Details |
| US2405909A | Method of producing threaded spiral tubes | Expired / Lapsed | 1942-08-22 | 1946-08-13 | 0 | Details |
| US2405558A | Terpene polymer | Expired / Lapsed | 1941-03-11 | 1946-08-13 | 0 | Details |
| US2402473A | Soap composition | Expired / Lapsed | 1943-10-21 | 1946-06-18 | 0 | Details |
| US2383084A | Terpene resins | Expired / Lapsed | 1942-04-06 | 1945-08-21 | 0 | Details |
| US2382731A | Adhesive | Expired / Lapsed | 1942-09-26 | 1945-08-14 | 0 | Details |
| US2382439A | Color grading apparatus and method | Expired / Lapsed | 1941-06-19 | 1945-08-14 | 0 | Details |
| US2361302A | Adhesive composition | Expired / Lapsed | 1940-12-28 | 1944-10-24 | 0 | Details |
| US2351912A | Emulsion | Expired / Lapsed | 1941-03-26 | 1944-06-20 | 0 | Details |
| US2350161A | Solution of water-soluble cellulose ether | Expired / Lapsed | 1942-06-30 | 1944-05-30 | 0 | Details |
| US2348575A | Terpene derivatives | Expired / Lapsed | 1941-05-31 | 1944-05-09 | 0 | Details |
| US2346791A | Size for textile fabrics | Expired / Lapsed | 1942-02-14 | 1944-04-18 | 0 | Details |
| US2336159A | Method of preparing filaments | Expired / Lapsed | 1940-09-25 | 1943-12-07 | 0 | Details |
| US2334414A | Seismic surveying | Expired / Lapsed | 1942-06-08 | 1943-11-16 | 0 | Details |
| US2320880A | Bridge plug assembly | Expired / Lapsed | 1940-05-25 | 1943-06-01 | 0 | Details |
| US2317499A | Method of finishing textiles | Expired / Lapsed | 1939-11-03 | 1943-04-27 | 0 | Details |
| US2294651A | High-gloss coated material | Expired / Lapsed | 1936-10-26 | 1942-09-01 | 0 | Details |
| US2285458A | Adhesive material | Expired / Lapsed | 1939-04-01 | 1942-06-09 | 0 | Details |
| US2272152A | Lacquer emulsion | Expired / Lapsed | 1940-02-02 | 1942-02-03 | 0 | Details |
| US2271724A | Coated cellulosic sheet material | Expired / Lapsed | 1938-09-30 | 1942-02-03 | 0 | Details |
| US2261985A | Fibrous tube | Expired / Lapsed | 1940-01-11 | 1941-11-11 | 0 | Details |
| US2235938A | Method of producing reaction products of ammonia and aldose… | Expired / Lapsed | 1938-10-15 | 1941-03-25 | 0 | Details |
| US2230792A | Method for sizing textile fabric | Expired / Lapsed | 1940-05-04 | 1941-02-04 | 0 | Details |
| US2224204A | Shell inspecting machine | Expired / Lapsed | 1939-05-12 | 1940-12-10 | 0 | Details |
| US2197540A | Method of producing reaction products of ammonia and aldose… | Expired / Lapsed | 1938-10-15 | 1940-04-16 | 0 | Details |
| US2193026A | Resin and process of producing | Expired / Lapsed | 1936-01-31 | 1940-03-12 | 0 | Details |
| US2186427A | Electric blasting cap | Expired / Lapsed | 1939-02-24 | 1940-01-09 | 0 | Details |
| US2186454A | Lacquers containing cellulose acetobutyrate and cellulose a… | Expired / Lapsed | 1937-06-24 | 1940-01-09 | 0 | Details |
| US2176053A | Sizing textile fabric | Expired / Lapsed | 1936-09-09 | 1939-10-17 | 0 | Details |
| US2176166A | Coated container | Expired / Lapsed | 1935-03-23 | 1939-10-17 | 0 | Details |
| US2155141A | Emulsifying agents and process of making same | Expired / Lapsed | 1936-05-04 | 1939-04-18 | 0 | Details |
| US2137584A | Method for the production of sulphur-containing high molecu… | Expired / Lapsed | 1936-07-27 | 1938-11-22 | 0 | Details |
| US2115496A | Condensation product and method of producing | Expired / Lapsed | 1935-07-11 | 1938-04-26 | 0 | Details |
| US2114393A | Greaseproof impregnated article and method of preparing | Expired / Lapsed | 1936-04-03 | 1938-04-19 | 0 | Details |
| US2028189A | Undercoat for lacquers and lacquered material | Expired / Lapsed | 1932-10-12 | 1936-01-21 | 0 | Details |
| US1971502A | Fuse powder for metal delays | Expired / Lapsed | 1932-05-05 | 1934-08-28 | 0 | Details |
| US1950894A | Coating composition | Expired / Lapsed | 1932-07-29 | 1934-03-13 | 0 | Details |
| US1463864A | Process of making storage-battery elements | Expired / Lapsed | 1922-05-24 | 1923-08-07 | 0 | Details |
| US1458925A | Detonator | Expired / Lapsed | 1921-05-18 | 1923-06-19 | 0 | Details |