Silica Gel Corp
Silica GelActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB392954A | Improvements in or relating to catalytic or adscrption proc… | Expired / Lapsed | 1931-11-20 | — | 0 | Details |
| US1925820A | Catalyst and method of making same | Expired / Lapsed | 1930-12-19 | 1933-09-05 | 0 | Details |
| US1868565A | Process of preparing adsorbent materials | Expired / Lapsed | 1930-11-22 | 1932-07-26 | 0 | Details |
| US1868581A | Method of revivifying adsorbents | Expired / Lapsed | 1928-06-12 | 1932-07-26 | 0 | Details |
| US1826112A | Constant uniform delivery siphon | Expired / Lapsed | 1929-02-02 | 1931-10-06 | 0 | Details |
| US1825707A | Method of adsorbing a gas in a solid adsorbent | Expired / Lapsed | 1927-05-24 | 1931-10-06 | 0 | Details |
| US1678298A | Process for refining oils and waxes | Expired / Lapsed | 1922-03-16 | 1928-07-24 | 0 | Details |
| US1577534A | Method and apparatus for separating or recovering alpha gas… | Expired / Lapsed | 1922-06-15 | 1926-03-23 | 0 | Details |