Celanese Corp
Celanese CActive Patents
0
Total Holdings
110
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB582006A | Improvements in or relating to the production of insulating… | Expired / Lapsed | 1944-02-24 | — | 0 | Details |
| US4692290A | Process for devolatilizing molten oxymethylene polymer | Expired / Lapsed | 1985-11-12 | 1987-09-08 | 12 | Details |
| US4105637A | Process for producing a polyacetal polymer | Expired / Lapsed | 1974-10-11 | 1978-08-08 | 20 | Details |
| US3932682A | Air permeable waterproof products having fabric-like aesthe… | Expired / Lapsed | 1972-04-26 | 1976-01-13 | 4 | Details |
| US3872001A | Removal of heavy metal pollutants from aqueous media | Expired / Lapsed | 1973-05-31 | 1975-03-18 | 6 | Details |
| US3558764A | Process for preparing microporous film | Expired / Lapsed | 1969-06-23 | 1971-01-26 | 0 | Details |
| US3533825A | Method for carbonizing textiles | Expired / Lapsed | 1967-04-04 | 1970-10-13 | 0 | Details |
| US3513110A | Open-celled low density filamentary material | Expired / Lapsed | 1965-10-01 | 1970-05-19 | 0 | Details |
| US3481136A | Process for producing polyester yarn | Expired / Lapsed | 1967-12-11 | 1969-12-02 | 0 | Details |
| US3442866A | Process for producing finely divided solid acetal copolymers | Expired / Lapsed | 1966-01-07 | 1969-05-06 | 0 | Details |
| US3426754A | Breathable medical dressing | Expired / Lapsed | 1966-09-14 | 1969-02-11 | 2 | Details |
| US3357076A | Yarn and fabrics having stretch properties | Expired / Lapsed | 1965-12-27 | 1967-12-12 | 4 | Details |
| US3314840A | Process and apparatus for producing a non-woven fabric | Expired / Lapsed | 1961-08-01 | 1967-04-18 | 2 | Details |
| US3253818A | Mixing and shearing apparatus | Expired / Lapsed | 1963-06-17 | 1966-05-31 | 2 | Details |
| US3254053A | Trioxane polymerization process and apparatus | Expired / Lapsed | 1962-10-15 | 1966-05-31 | 2 | Details |
| US3209402A | Apparatus for producing multicom-ponent filaments and yarns | Expired / Lapsed | 1962-03-07 | 1965-10-05 | 1 | Details |
| US3208451A | Sanitary napkin | Expired / Lapsed | 1959-02-26 | 1965-09-28 | 2 | Details |
| US3064173A | Speed slaving method and apparatus | Expired / Lapsed | 1956-05-18 | 1962-11-13 | 0 | Details |
| US3027352A | Copolymers | Expired / Lapsed | 1960-10-19 | 1962-03-27 | 2 | Details |
| US2803041A | Extrusion of plastic materials | Expired / Lapsed | 1953-02-11 | 1957-08-20 | 2 | Details |
| US2776947A | Polymer dispersions | Expired / Lapsed | 1952-10-31 | 1957-01-08 | 2 | Details |
| US2712343A | Heat sealing machine | Expired / Lapsed | 1953-07-14 | 1955-07-05 | 0 | Details |
| US2706310A | Process for finishing organic thermoplastic sheeting | Expired / Lapsed | 1950-12-14 | 1955-04-19 | 2 | Details |
| US2607954A | Method and apparatus for forming gel-free thermoplastic fil… | Expired / Lapsed | 1950-06-17 | 1952-08-26 | 2 | Details |
| US2595343A | Production of polyesters by reacting a dicarboxylic acid wi… | Expired / Lapsed | 1948-08-06 | 1952-05-06 | 2 | Details |
| US2579815A | Extrusion apparatus | Expired / Lapsed | 1948-11-27 | 1951-12-25 | 0 | Details |
| US2556260A | Process for coagulating polymer emulsions and recovering sp… | Expired / Lapsed | 1947-07-29 | 1951-06-12 | 0 | Details |
| US2550006A | Method of laminating fabrics | Expired / Lapsed | 1945-11-28 | 1951-04-24 | 0 | Details |
| US2524895A | Puckering a thermoplastic fabric by heating one side thereof | Expired / Lapsed | 1945-10-31 | 1950-10-10 | 1 | Details |
| US2518647A | Interferometer means for thickness measurements | Expired / Lapsed | 1948-01-07 | 1950-08-15 | 0 | Details |
| US2500332A | Covered and coated cord and fabric | Expired / Lapsed | 1946-12-28 | 1950-03-14 | 0 | Details |
| US2477773A | Chuck | Expired / Lapsed | 1945-03-20 | 1949-08-02 | 0 | Details |
| US2461603A | Patterned textile material | Expired / Lapsed | 1944-07-14 | 1949-02-15 | 0 | Details |
| US2438156A | Pile materials and production thereof | Expired / Lapsed | 1943-06-05 | 1948-03-23 | 0 | Details |
| US2387227A | Shatterproof plastic | Expired / Lapsed | 1942-03-20 | 1945-10-23 | 0 | Details |
| US2385110A | Treatment of textile materials | Expired / Lapsed | 1942-07-15 | 1945-09-18 | 0 | Details |
| US2384521A | Method for extruding thermoplastic compositions | Expired / Lapsed | 1940-04-16 | 1945-09-11 | 0 | Details |
| US2377846A | Light structure | Expired / Lapsed | 1941-12-19 | 1945-06-05 | 0 | Details |
| US2372669A | Process for the production of absorbent materials | Expired / Lapsed | 1941-06-18 | 1945-04-03 | 0 | Details |
| US2352245A | Textile material and the production thereof | Expired / Lapsed | 1942-03-10 | 1944-06-27 | 0 | Details |
| US2352244A | Textile material | Expired / Lapsed | 1942-03-05 | 1944-06-27 | 0 | Details |
| US2335922A | Manufacture of artificial textile materials and the like | Expired / Lapsed | 1941-03-06 | 1943-12-07 | 0 | Details |
| US2321108A | Manufacture of textile materials | Expired / Lapsed | 1939-06-24 | 1943-06-08 | 0 | Details |
| US2313904A | Dim-out material | Expired / Lapsed | 1942-06-06 | 1943-03-16 | 0 | Details |
| US2311013A | Apparatus for preparing stiffened fabrics | Expired / Lapsed | 1940-11-05 | 1943-02-16 | 0 | Details |
| US2303339A | Manufacture of artificial materials | Expired / Lapsed | 1939-10-03 | 1942-12-01 | 0 | Details |
| US2303338A | Preparation of artificial filaments or threads | Expired / Lapsed | 1939-09-21 | 1942-12-01 | 0 | Details |
| US2290929A | Production of artificial filaments | Expired / Lapsed | 1940-03-20 | 1942-07-28 | 0 | Details |
| US2287139A | Material for making rubber articles | Expired / Lapsed | 1939-02-21 | 1942-06-23 | 0 | Details |
| US2283266A | Distribution of fluids | Expired / Lapsed | 1940-03-07 | 1942-05-19 | 0 | Details |
| US2257817A | Hydroxyalkylation of amines | Expired / Lapsed | 1939-03-16 | 1941-10-07 | 0 | Details |
| US2242372A | Method of making porous articles | Expired / Lapsed | 1938-07-26 | 1941-05-20 | 0 | Details |
| US2238165A | Manufacture of textile and like materials | Expired / Lapsed | 1937-09-09 | 1941-04-15 | 0 | Details |
| US2236766A | Process of coating | Expired / Lapsed | 1937-12-30 | 1941-04-01 | 0 | Details |
| US2230396A | Production of staple fibers from continuous filaments | Expired / Lapsed | 1939-03-07 | 1941-02-04 | 0 | Details |
| US2227911A | Production of staple fiber yarns and like products | Expired / Lapsed | 1939-10-03 | 1941-01-07 | 0 | Details |
| US2224922A | Handling of continuous filaments | Expired / Lapsed | 1938-10-06 | 1940-12-17 | 0 | Details |
| US2218633A | Textile material | Expired / Lapsed | 1938-04-05 | 1940-10-22 | 0 | Details |
| US2216810A | Manufacture of artificial yarns | Expired / Lapsed | 1936-06-03 | 1940-10-08 | 0 | Details |
| US2211079A | Laminated textile | Expired / Lapsed | 1938-04-08 | 1940-08-13 | 0 | Details |
| US2207822A | Apparatus and process for making decorative films | Expired / Lapsed | 1937-06-04 | 1940-07-16 | 0 | Details |
| US2201992A | Treatment of textile yarns and filaments | Expired / Lapsed | 1939-03-25 | 1940-05-28 | 0 | Details |
| US2197856A | Manufacture of yarns containing staple fiber from yarns com… | Expired / Lapsed | 1937-02-04 | 1940-04-23 | 0 | Details |
| US2174573A | Production of crimped cellulose derivative yarns | Expired / Lapsed | 1937-04-07 | 1939-10-03 | 0 | Details |
| US2171626A | Fabric and its manufacture | Expired / Lapsed | 1936-08-12 | 1939-09-05 | 0 | Details |
| US2163723A | Cellulose derivatives and method of preparing same | Expired / Lapsed | 1937-11-23 | 1939-06-27 | 0 | Details |
| US2158112A | Production of stiffened fabrics | Expired / Lapsed | 1936-08-20 | 1939-05-16 | 0 | Details |
| US2155519A | Textile yarn and fabric and method of making same | Expired / Lapsed | 1936-07-18 | 1939-04-25 | 0 | Details |
| US2149498A | Composition for application to organic derivatives of cellu… | Expired / Lapsed | 1936-11-07 | 1939-03-07 | 0 | Details |
| US2138934A | Sulphonamide compounds | Expired / Lapsed | 1936-04-18 | 1938-12-06 | 0 | Details |
| US2136201A | Method of spinning artificial filaments | Expired / Lapsed | 1935-09-13 | 1938-11-08 | 0 | Details |
| US2135128A | Manufacture of derivatives of cellulose and other polymeric… | Expired / Lapsed | 1936-08-12 | 1938-11-01 | 0 | Details |
| US2130359A | Ornamental compound sheet material | Expired / Lapsed | 1936-03-03 | 1938-09-20 | 0 | Details |
| US2128338A | Colored organic derivatives of cellulose and method of maki… | Expired / Lapsed | 1934-07-25 | 1938-08-30 | 0 | Details |
| US2127586A | Pile fabric and method of making the same | Expired / Lapsed | 1933-12-05 | 1938-08-23 | 0 | Details |
| US2126821A | Composite fabric and method of making same | Expired / Lapsed | 1934-12-01 | 1938-08-16 | 0 | Details |
| US2126850A | Conductor and filaments therefor containing organic derivat… | Expired / Lapsed | 1934-07-26 | 1938-08-16 | 0 | Details |
| US2113935A | Textile material containing organic derivatives of cellulose | Expired / Lapsed | 1935-10-16 | 1938-04-12 | 0 | Details |
| US2085047A | Porous and insulating materials | Expired / Lapsed | 1934-02-24 | 1937-06-29 | 0 | Details |
| US2077079A | Manufacture of staple fiber yarns from continuous filaments | Expired / Lapsed | 1935-05-28 | 1937-04-13 | 0 | Details |
| US2077078A | Manufacture of staple fiber yarns from continuous filaments | Expired / Lapsed | 1934-05-18 | 1937-04-13 | 0 | Details |
| US2076781A | Thermoplastic compositions and method of preparing the same | Expired / Lapsed | 1933-05-18 | 1937-04-13 | 0 | Details |
| US2072858A | Production of colorations on materials | Expired / Lapsed | 1933-03-25 | 1937-03-09 | 0 | Details |
| US2072926A | Production of textile or other materials | Expired / Lapsed | 1931-01-05 | 1937-03-09 | 0 | Details |
| US2070600A | Process of coating | Expired / Lapsed | 1933-07-22 | 1937-02-16 | 0 | Details |
| US2067251A | Manufacture of textile materials | Expired / Lapsed | 1934-04-18 | 1937-01-12 | 0 | Details |
| US2067219A | Treatment of filaments, films, and textile fabrics | Expired / Lapsed | 1933-11-02 | 1937-01-12 | 0 | Details |
| US2067202A | Textile operation | Expired / Lapsed | 1932-08-04 | 1937-01-12 | 0 | Details |
| US2065124A | Production of artificial filaments, yarns, or threads | Expired / Lapsed | 1929-09-04 | 1936-12-22 | 0 | Details |
| US2057689A | Electrical conductor | Expired / Lapsed | 1931-11-27 | 1936-10-20 | 0 | Details |
| US2038724A | Antifreeze compound | Expired / Lapsed | 1933-10-19 | 1936-04-28 | 0 | Details |
| US2030066A | Plastic material and method of making same | Expired / Lapsed | 1934-06-29 | 1936-02-11 | 0 | Details |
| US2022391A | Method of making a textile fabric | Expired / Lapsed | 1932-03-07 | 1935-11-26 | 0 | Details |
| US2020687A | Apparatus for use in the manufacture of films and foils | Expired / Lapsed | 1933-01-11 | 1935-11-12 | 0 | Details |
| US2013688A | Apparatus for the manufacture of artificial filaments or th… | Expired / Lapsed | 1931-10-22 | 1935-09-10 | 0 | Details |
| US2010900A | Manufacture or treatment of yarns or filaments | Expired / Lapsed | 1933-12-19 | 1935-08-13 | 0 | Details |
| US2005785A | Treatment of filaments, threads, yarns, and the like | Expired / Lapsed | 1933-02-23 | 1935-06-25 | 0 | Details |
| US1995296A | Textile material | Expired / Lapsed | 1931-04-16 | 1935-03-26 | 0 | Details |
| US1993766A | Knitted fabrics and the manufacture thereof | Expired / Lapsed | 1932-10-05 | 1935-03-12 | 0 | Details |
| US1983330A | Manufacture of artificial filaments, threads, films, or the… | Expired / Lapsed | 1929-06-27 | 1934-12-04 | 0 | Details |
| US1955825A | Method of spinning | Expired / Lapsed | 1930-10-29 | 1934-04-24 | 0 | Details |
| US1909192A | Production of artificial textile yarns or threads | Expired / Lapsed | 1929-11-11 | 1933-05-16 | 0 | Details |
| US1889061A | Manufacture of new or improved fabrics | Expired / Lapsed | 1927-03-17 | 1932-11-29 | 0 | Details |
| US1883423A | Apparatus for forming filaments | Expired / Lapsed | 1929-01-02 | 1932-10-18 | 0 | Details |
| US1871100A | Process and apparatus for manipulating textile materials | Expired / Lapsed | 1929-05-07 | 1932-08-09 | 0 | Details |
| US1871046A | Manufacture or treatment of textile products | Expired / Lapsed | 1928-10-08 | 1932-08-09 | 0 | Details |
| US1815444A | Method of uniting articles and product thereof | Expired / Lapsed | 1929-04-02 | 1931-07-21 | 0 | Details |
| US1773969A | Process of and apparatus for making artificial filaments | Expired / Lapsed | 1928-09-08 | 1930-08-26 | 0 | Details |
| US1760070A | Pumping apparatus | Expired / Lapsed | 1927-04-06 | 1930-05-27 | 0 | Details |
| US1655677A | Manufacture of products having a basis of cellulose derivat… | Expired / Lapsed | 1925-11-21 | 1928-01-10 | 0 | Details |