Brown Co
Brown CoActive Patents
0
Total Holdings
41
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2802404A | Method and apparatus for fabricating curved fiber tubing | Expired / Lapsed | 1953-04-14 | 1957-08-13 | 0 | Details |
| US2757086A | Method of wet-strengthening paper with high molecular weigh… | Expired / Lapsed | 1950-08-19 | 1956-07-31 | 2 | Details |
| US2215136A | Manufacture of wet-strengthened paper | Expired / Lapsed | 1937-07-19 | 1940-09-17 | 0 | Details |
| US2159639A | Artificial leather manufacture | Expired / Lapsed | 1936-06-04 | 1939-05-23 | 0 | Details |
| US2112116A | Production of cellulose fiber of low solution viscosity for… | Expired / Lapsed | 1936-05-02 | 1938-03-22 | 0 | Details |
| US2103640A | Paper manufacture | Expired / Lapsed | 1935-03-30 | 1937-12-28 | 0 | Details |
| US2077664A | Pad of paper sheets for hanging on a wall | Expired / Lapsed | 1935-11-08 | 1937-04-20 | 0 | Details |
| US2064360A | Manufacture of smooth-faced webs of interfelted fiber | Expired / Lapsed | 1934-07-25 | 1936-12-15 | 0 | Details |
| US2057166A | Manufacture of sheeted fiberbinder products | Expired / Lapsed | 1931-02-27 | 1936-10-13 | 0 | Details |
| US2033481A | Paper manufacture | Expired / Lapsed | 1933-11-15 | 1936-03-10 | 0 | Details |
| US2031854A | Surface-finished paper | Expired / Lapsed | 1931-09-11 | 1936-02-25 | 0 | Details |
| US2028846A | Cellulose pulp for esterification purposes and processing o… | Expired / Lapsed | 1931-06-22 | 1936-01-28 | 0 | Details |
| US2015440A | Finishing of artificial leather | Expired / Lapsed | 1932-04-11 | 1935-09-24 | 0 | Details |
| US1989885A | Specialty paper | Expired / Lapsed | 1932-01-20 | 1935-02-05 | 0 | Details |
| US1990248A | Waterproof fibrous tubing and method of making the same | Expired / Lapsed | 1930-04-25 | 1935-02-05 | 0 | Details |
| US1980881A | Manufacture of waterlaid fibrous webs | Expired / Lapsed | 1931-11-25 | 1934-11-13 | 0 | Details |
| US1977221A | Paper manufacture | Expired / Lapsed | 1932-11-05 | 1934-10-16 | 0 | Details |
| US1969855A | Paper fabric and other product | Expired / Lapsed | 1931-02-04 | 1934-08-14 | 0 | Details |
| US1969588A | Metallic fiber pipe fitting and method of making same | Expired / Lapsed | 1932-02-02 | 1934-08-07 | 0 | Details |
| US1964793A | Glycerinated paper | Expired / Lapsed | 1932-01-30 | 1934-07-03 | 0 | Details |
| US1964772A | Production of pulverized cellulose | Expired / Lapsed | 1931-09-03 | 1934-07-03 | 0 | Details |
| US1935129A | Cellulose fiber of low solution viscosity and process of pr… | Expired / Lapsed | 1929-06-17 | 1933-11-14 | 0 | Details |
| US1926599A | Artificial leather manufacture | Expired / Lapsed | 1929-01-18 | 1933-09-12 | 0 | Details |
| US1923622A | Artificial leather manufacture | Expired / Lapsed | 1929-01-16 | 1933-08-22 | 0 | Details |
| US1923641A | Low viscosity cellulose fiber and process of producing the … | Expired / Lapsed | 1928-07-17 | 1933-08-22 | 0 | Details |
| US1915451A | Method of and means for directing and accumulating strand m… | Expired / Lapsed | 1930-12-22 | 1933-06-27 | 0 | Details |
| US1891027A | Artificial leather and process of manufacturing same | Expired / Lapsed | 1927-03-16 | 1932-12-13 | 0 | Details |
| US1888771A | Manufacture of felted fibrous sheet material of high absorp… | Expired / Lapsed | 1931-08-05 | 1932-11-22 | 0 | Details |
| US1881916A | Method of forming fibrous bell-mouth tube ends | Expired / Lapsed | 1931-02-28 | 1932-10-11 | 0 | Details |
| US1881915A | Coupling for fiber pipe | Expired / Lapsed | 1930-03-21 | 1932-10-11 | 0 | Details |
| US1880056A | Manufacture of rovings, yarns, twines, and the like | Expired / Lapsed | 1930-02-06 | 1932-09-27 | 0 | Details |
| US1860431A | Process of producing low-viscosity cellulose fiber | Expired / Lapsed | 1928-06-02 | 1932-05-31 | 0 | Details |
| US1855205A | Differential pressure gauge for corrosive fluids | Expired / Lapsed | 1926-12-11 | 1932-04-26 | 0 | Details |
| US1847269A | Fiber product and method of making same | Expired / Lapsed | 1929-03-13 | 1932-03-01 | 0 | Details |
| US1821234A | Multiple conduit | Expired / Lapsed | 1927-10-29 | 1931-09-01 | 0 | Details |
| US1811898A | Metering apparatus | Expired / Lapsed | 1928-09-18 | 1931-06-30 | 0 | Details |
| US1780948A | Method of and apparatus for making conduits by extrusion | Expired / Lapsed | 1926-08-05 | 1930-11-11 | 0 | Details |
| US1765776A | Liquid-flow meter | Expired / Lapsed | 1926-01-23 | 1930-06-24 | 0 | Details |
| US1745557A | Paper towel and process of producing the same | Expired / Lapsed | 1926-04-28 | 1930-02-04 | 0 | Details |
| US1710272A | Recovery of valuable products from spent sulphite liquors | Expired / Lapsed | 1927-01-06 | 1929-04-23 | 0 | Details |
| US1701543A | Process of conditioning cellulose fiber for conversion into… | Expired / Lapsed | 1926-10-09 | 1929-02-12 | 0 | Details |