WR Grace and Co
WR Grace aActive Patents
0
Total Holdings
97
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4365025A | Flexible polyurethane foams from polymethylene polyphenyl i… | Expired / Lapsed | 1981-12-08 | 1982-12-21 | 28 | Details |
| US4359323A | Single pump liquid chromatograph analytical system for amin… | Expired / Lapsed | 1980-10-31 | 1982-11-16 | 8 | Details |
| US4182649A | Polyurethane foam sheet and method | Expired / Lapsed | 1977-02-11 | 1980-01-08 | 38 | Details |
| US4160076A | Simulated natural sponge based on hydrophilic polyurethane | Expired / Lapsed | 1977-07-15 | 1979-07-03 | 10 | Details |
| US4132812A | Photocurable imidizable polyene-polythiol compositions | Expired / Lapsed | 1977-11-15 | 1979-01-02 | 8 | Details |
| US4128185A | Container closure | Expired / Lapsed | 1977-11-07 | 1978-12-05 | 3 | Details |
| US4128788A | Method and apparatus for operating a gaseous discharge lamp… | Expired / Lapsed | 1977-02-22 | 1978-12-05 | 12 | Details |
| US4127124A | Urethane bioimplant membrane | Expired / Lapsed | 1977-05-12 | 1978-11-28 | 38 | Details |
| US4119746A | Cross-linking resin saturant and method | Expired / Lapsed | 1977-06-14 | 1978-10-10 | 14 | Details |
| US4111917A | Use of latent amines to cure epoxy resins | Expired / Lapsed | 1976-05-11 | 1978-09-05 | 15 | Details |
| US4088132A | Hydrophilic polyurethane foams for use in catamenial devices | Expired / Lapsed | 1975-05-07 | 1978-05-09 | 15 | Details |
| US4069080A | Method and apparatus of bonding superposed sheets of polyme… | Expired / Lapsed | 1976-06-11 | 1978-01-17 | 7 | Details |
| US4003758A | Battery separator with porous body and fused rib | Expired / Lapsed | 1972-12-21 | 1977-01-18 | 10 | Details |
| US3997385A | Clamping of film-like material for radiant energy welding | Expired / Lapsed | 1975-08-18 | 1976-12-14 | 17 | Details |
| US3965646A | Adjustable sealing device | Expired / Lapsed | 1975-02-26 | 1976-06-29 | 19 | Details |
| US3926755A | Radiation polymerizable polyester composition | Expired / Lapsed | 1974-06-21 | 1975-12-16 | 18 | Details |
| US3891008A | Multi-layer thermoplastic film and method of making same | Expired / Lapsed | 1973-12-26 | 1975-06-24 | 13 | Details |
| US3872194A | Process for producing a bulk cushioning material | Expired / Lapsed | 1970-09-30 | 1975-03-18 | 6 | Details |
| US3812619A | Horticultural foam structures and method | Expired / Lapsed | 1972-08-10 | 1974-05-28 | 20 | Details |
| US3775176A | Method of forming an electroplatable microporous film with … | Expired / Lapsed | 1971-02-23 | 1973-11-27 | 0 | Details |
| US3701721A | Curable liquid polyene-polythiol compositions containing po… | Expired / Lapsed | 1971-12-06 | 1972-10-31 | 0 | Details |
| US3676159A | Thermoformed reusable package having a reclosable lid | Expired / Lapsed | 1970-04-27 | 1972-07-11 | 0 | Details |
| US3661806A | Exhaust gas oxidation catalyst and process | Expired / Lapsed | 1970-01-05 | 1972-05-09 | 0 | Details |
| US3607777A | Process for preparing microspheroidal desiccant silica gel | Expired / Lapsed | 1968-06-18 | 1971-09-21 | 3 | Details |
| US3603397A | Intrinsic mobility control in petroleum recovery | Expired / Lapsed | 1969-05-14 | 1971-09-07 | 20 | Details |
| US3587843A | Package of bags | Expired / Lapsed | 1967-09-11 | 1971-06-28 | 0 | Details |
| US3577508A | Coating and laminating process | Expired / Lapsed | 1969-07-15 | 1971-05-04 | 0 | Details |
| US3558562A | Process for forming watersoluble polyamides | Expired / Lapsed | 1967-11-21 | 1971-01-26 | 0 | Details |
| US3554852A | Breathable laminate substantially non-permeable to aerosols… | Expired / Lapsed | 1967-03-09 | 1971-01-12 | 0 | Details |
| US3553255A | Novel water soluble polymer | Expired / Lapsed | 1968-10-10 | 1971-01-05 | 0 | Details |
| US3541019A | Method of preparing a zinc silicate phosphor | Expired / Lapsed | 1968-03-15 | 1970-11-17 | 0 | Details |
| US3537853A | Process of forming printing plates,including the step of su… | Expired / Lapsed | 1968-10-04 | 1970-11-03 | 0 | Details |
| US3536796A | Process for reducing shrinkage in preparing porous plastic … | Expired / Lapsed | 1967-11-29 | 1970-10-27 | 0 | Details |
| US3524811A | Flocculating process | Expired / Lapsed | 1968-04-08 | 1970-08-18 | 0 | Details |
| US3514376A | Control of scaling in evaporators | Expired / Lapsed | 1969-06-20 | 1970-05-26 | 0 | Details |
| US3471597A | Perforating film by electrical discharge | Expired / Lapsed | 1967-06-27 | 1969-10-07 | 0 | Details |
| US3470105A | Method for the production of a supported chromium-cobalt-pa… | Expired / Lapsed | 1967-03-02 | 1969-09-30 | 0 | Details |
| US3453077A | Process for preparing microspheroidal silica | Expired / Lapsed | 1967-08-10 | 1969-07-01 | 0 | Details |
| US3445259A | Coprecipitated cahpo4-2h2o and caso4-2h2/ pigment and metho… | Expired / Lapsed | 1968-05-03 | 1969-05-20 | 0 | Details |
| US3444281A | Process of preparing cellular closure gaskets | Expired / Lapsed | 1966-04-21 | 1969-05-13 | 0 | Details |
| US3351495A | Battery separator | Expired / Lapsed | 1966-11-22 | 1967-11-07 | 2 | Details |
| US3350265A | Aqueous polymeric latex with silver and sodium hypochlorite… | Expired / Lapsed | 1966-01-04 | 1967-10-31 | 2 | Details |
| US3339781A | Hollow wall container | Expired / Lapsed | 1965-03-22 | 1967-09-05 | 2 | Details |
| US3320106A | Fastening process | Expired / Lapsed | 1963-09-13 | 1967-05-16 | 2 | Details |
| US3316676A | Seed packages of water insoluble polyethylene oxide | Expired / Lapsed | 1965-03-03 | 1967-05-02 | 1 | Details |
| US3295918A | Method of treating exhaust gases | Expired / Lapsed | 1962-09-06 | 1967-01-03 | 2 | Details |
| US3294758A | Amorphous polyamides from a mixture of an alkyl substituted… | Expired / Lapsed | 1963-08-08 | 1966-12-27 | 2 | Details |
| US3292129A | Silicon thermistors | Expired / Lapsed | 1965-09-24 | 1966-12-13 | 1 | Details |
| US3271484A | Manufacture of balloons | Expired / Lapsed | 1963-12-31 | 1966-09-06 | 2 | Details |
| US3270309A | Temperature sensitive device | Expired / Lapsed | 1964-01-29 | 1966-08-30 | 2 | Details |
| US3231083A | Wrapper encased package | Expired / Lapsed | 1964-07-23 | 1966-01-25 | 1 | Details |
| US3225766A | Method of making absorbable surgical sutures from poly beta… | Expired / Lapsed | 1962-03-26 | 1965-12-28 | 2 | Details |
| US3198771A | Amorphous polyamides from aromatic dicarboxylic acids and a… | Expired / Lapsed | 1961-06-30 | 1965-08-03 | 2 | Details |
| US3195776A | Automatic catalyst dispenser | Expired / Lapsed | 1962-12-03 | 1965-07-20 | 2 | Details |
| US3169079A | Process for producing a polymer coating | Expired / Lapsed | 1963-07-05 | 1965-02-09 | 2 | Details |
| US3162518A | Lead removal device | Expired / Lapsed | 1963-07-24 | 1964-12-22 | 0 | Details |
| US3155753A | Process of filling a rigid hollow structure with foamed-in-… | Expired / Lapsed | 1963-02-04 | 1964-11-03 | 2 | Details |
| US3149017A | Polyethylene balloon | Expired / Lapsed | 1961-05-24 | 1964-09-15 | 2 | Details |
| US3144399A | Polyethylene product | Expired / Lapsed | 1958-06-16 | 1964-08-11 | 2 | Details |
| US3131240A | Protective padding | Expired / Lapsed | 1960-11-09 | 1964-04-28 | 2 | Details |
| US3117112A | Polymerization process using cocatalyst of aluminum alkyl c… | Expired / Lapsed | 1961-04-07 | 1964-01-07 | 2 | Details |
| US3113408A | Process for securing a shrinkable fastener to a container | Expired / Lapsed | 1959-12-03 | 1963-12-10 | 2 | Details |
| US3107172A | Molded product containing poly-beta-hydroxybutyric acid and… | Expired / Lapsed | 1960-12-30 | 1963-10-15 | 2 | Details |
| US3106441A | Method of making preforms or blanks from polyethylene | Expired / Lapsed | 1960-01-04 | 1963-10-08 | 0 | Details |
| US3097150A | Irradiated, cross-linked polyethylene copolymer | Expired / Lapsed | 1955-06-24 | 1963-07-09 | 2 | Details |
| CA666206A | Reinforced edge aperture in heat shrinkable material | Expired / Lapsed | — | 1963-07-02 | 0 | Details |
| US3095103A | Closure for containers | Expired / Lapsed | 1960-11-23 | 1963-06-25 | 2 | Details |
| US3093655A | Carboxylic acid-polyethylene polyamine reaction mixture | Expired / Lapsed | 1960-12-28 | 1963-06-11 | 2 | Details |
| US3093448A | Encapsulation of electrical components and other articles | Expired / Lapsed | 1959-11-25 | 1963-06-11 | 2 | Details |
| US3092439A | Method for producing a reinforced edge aperture in heat shr… | Expired / Lapsed | 1961-03-21 | 1963-06-04 | 2 | Details |
| US3071819A | Packages | Expired / Lapsed | 1961-01-03 | 1963-01-08 | 2 | Details |
| US3047370A | Transparent soda lime cartridge | Expired / Lapsed | 1959-07-28 | 1962-07-31 | 2 | Details |
| US3044942A | Process for preparing poly-beta-hydroxybutyric acid | Expired / Lapsed | 1960-09-27 | 1962-07-17 | 2 | Details |
| US3036959A | Process for preparing poly-beta-hydroxy-butyric acid | Expired / Lapsed | 1960-09-26 | 1962-05-29 | 2 | Details |
| US3026366A | Separators for electric storage batteries | Expired / Lapsed | 1960-05-02 | 1962-03-20 | 2 | Details |
| US3022543A | Method of producing film having improved shrink energy | Expired / Lapsed | 1958-02-07 | 1962-02-27 | 2 | Details |
| US3015824A | Clip crimping apparatus | Expired / Lapsed | 1959-08-18 | 1962-01-09 | 0 | Details |
| US3006829A | Process for treating linear polypropylene | Expired / Lapsed | 1956-03-15 | 1961-10-31 | 2 | Details |
| US2997170A | Laminates | Expired / Lapsed | 1959-12-16 | 1961-08-22 | 0 | Details |
| US2995523A | Detergent-softener compositions | Expired / Lapsed | 1958-02-17 | 1961-08-08 | 2 | Details |
| US2994424A | Package | Expired / Lapsed | 1957-08-08 | 1961-08-01 | 0 | Details |
| US2979131A | Method and apparatus for treating paper | Expired / Lapsed | 1959-06-10 | 1961-04-11 | 0 | Details |
| US2975931A | Container | Expired / Lapsed | 1959-06-04 | 1961-03-21 | 0 | Details |
| US2967383A | Packaged product and method of making the same | Expired / Lapsed | 1957-11-07 | 1961-01-10 | 0 | Details |
| US2963838A | Film sealing mechanism for packaging machines | Expired / Lapsed | 1958-06-05 | 1960-12-13 | 0 | Details |
| US2956056A | Process for preparing trichlorocyanuric acid | Expired / Lapsed | 1958-02-14 | 1960-10-11 | 2 | Details |
| US2904943A | Method and apparatus for packaging articles in shrinkable p… | Expired / Lapsed | 1958-08-20 | 1959-09-22 | 0 | Details |
| US2904480A | Polyethylene | Expired / Lapsed | 1955-06-06 | 1959-09-15 | 2 | Details |
| US2885105A | Preformed shrinkable closures for containers | Expired / Lapsed | 1955-08-30 | 1959-05-05 | 1 | Details |
| US2877500A | Process for preparing transparent polyethylene | Expired / Lapsed | 1955-06-17 | 1959-03-17 | 2 | Details |
| US2878174A | Polyethylene | Expired / Lapsed | 1955-06-06 | 1959-03-17 | 2 | Details |
| US2855517A | Irradiation treatment of polyethylene | Expired / Lapsed | 1955-07-20 | 1958-10-07 | 2 | Details |
| US2810775A | Plate separator for storage batteries | Expired / Lapsed | 1956-02-16 | 1957-10-22 | 2 | Details |
| US2774744A | Method of preparing low soda-content alumina catalyst | Expired / Lapsed | 1950-11-06 | 1956-12-18 | 2 | Details |
| US2751732A | Automatic packaging machines | Expired / Lapsed | 1953-06-30 | 1956-06-26 | 2 | Details |
| US2723932A | Textile print wash blanket and method of making same | Expired / Lapsed | 1951-03-13 | 1955-11-15 | 4 | Details |
| US2512253A | Centrifugal separator | Expired / Lapsed | 1947-04-10 | 1950-06-20 | 0 | Details |