Houdry Process Corp
Houdry ProActive Patents
0
Total Holdings
19
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2850038A | Flow control device | Expired / Lapsed | 1952-09-30 | 1958-09-02 | 0 | Details |
| US2714054A | Method of treating chromic oxide | Expired / Lapsed | 1952-02-15 | 1955-07-26 | 2 | Details |
| US2504158A | Hydrocarbon conversion with eccles kaolin | Expired / Lapsed | 1947-02-26 | 1950-04-18 | 2 | Details |
| US2494586A | Cracking hydrocarbons with modified kaolin catalyst | Expired / Lapsed | 1946-04-30 | 1950-01-17 | 2 | Details |
| US2444913A | Preparation of zirconia containing catalysis | Expired / Lapsed | 1944-05-12 | 1948-07-13 | 0 | Details |
| US2414812A | Catalysis | Expired / Lapsed | 1942-11-25 | 1947-01-28 | 0 | Details |
| US2406420A | Manufacture of stable alumina and impregnated alumina catal… | Expired / Lapsed | 1941-07-05 | 1946-08-27 | 0 | Details |
| US2380391A | Residual hydrocarbon treatment | Expired / Lapsed | 1941-04-05 | 1945-07-31 | 0 | Details |
| US2349243A | Catalysis | Expired / Lapsed | 1942-03-04 | 1944-05-23 | 0 | Details |
| US2324474A | Successive switching apparatus | Expired / Lapsed | 1940-12-21 | 1943-07-20 | 0 | Details |
| US2299768A | Treatment of solid contact masses | Expired / Lapsed | 1938-05-20 | 1942-10-27 | 0 | Details |
| US2289329A | Production of hydrocarbons | Expired / Lapsed | 1938-07-16 | 1942-07-07 | 0 | Details |
| US2283172A | Zeolites and their treatment | Expired / Lapsed | 1937-10-23 | 1942-05-19 | 0 | Details |
| US2266033A | Starting and controlling contacting operations | Expired / Lapsed | 1939-09-23 | 1941-12-16 | 0 | Details |
| US2232727A | Reaction of solutions | Expired / Lapsed | 1938-03-15 | 1941-02-25 | 0 | Details |
| US2200310A | Apparatus for indicating leakage in valves | Expired / Lapsed | 1938-02-19 | 1940-05-14 | 0 | Details |
| US2146718A | Preparation of contact masses from gels and the like | Expired / Lapsed | 1936-06-03 | 1939-02-14 | 0 | Details |
| US2108087A | Apparatus for contact treatment of materials | Expired / Lapsed | 1935-11-09 | 1938-02-15 | 0 | Details |
| US2073638A | Apparatus for regeneration of contact masses | Expired / Lapsed | 1932-04-13 | 1937-03-16 | 0 | Details |