Joseph Cohen
36Patents
10h-index
10Co-inventors
72Inventor score
Filing activity: Oct 19, 1976 → Mar 24, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4237102A | Process for obtaining pure alumina by the hydrochloric attack of aluminous ores and extraction of the impurities by means of a sulphuric treatment | Chemistry; Metallurgy | 23 | Expired |
| US4124680A | Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements | Chemistry; Metallurgy | 21 | Expired |
| US4177242A | Method of obtaining pure alumina by acid attack on aluminous minerals containing other elements | Chemistry; Metallurgy | 19 | Expired |
| US4241030A | Continuous process for obtaining pure alumina from an acidic liquor originating from the chlorosulphuric attack of an aluminous ore and for the purification of the liquor which has been freed from alumina | Chemistry; Metallurgy | 17 | Expired |
| US4474625A | Method for superficial annealing of semiconductor materials using pulsed micro-wave energy | Electricity | 16 | Expired |
| US4588485A | Process for the production of a metal by electrolyzing halides in a molten salt bath, comprising a simultaneous and continuous double deposit | Chemistry; Metallurgy | 14 | Expired |
| USD824427S1 | Snow thrower | General | 11 | Active |
| USD701471S1 | Food vehicle | General | 11 | Active |
| USD521530S1 | Snow thrower with an ergonomic handle | General | 11 | Expired |
| USD1047890S1 | 8-amp battery | General | 11 | Active |
| USD672071S1 | Snow blower light | General | 9 | Active |
| US8464387B1 | Device with a scraper and a removal head | Fixed Constructions | 9 | Active |
| USD701470S1 | Food vehicle | General | 9 | Active |
| US9084525B2 | Device with a scraper and a removal head | Fixed Constructions | 8 | Active |
| USD743445S1 | Snow thrower battery housing | General | 7 | Active |
| US4159313A | Alumina agglomerates with good mechanical strength and a method of obtaining them | Chemistry; Metallurgy | 7 | Expired |
| USD722213S1 | Telescopic extension with a scraper and a removal head | General | 5 | Active |
| USD672072S1 | Snow blower light | General | 4 | Active |
| US9925961B2 | Device with removal head and lighting element | Mechanical Engineering; Lighting; Heating | 4 | Active |
| USD672070S1 | Snow blower light | General | 4 | Active |
| USD672069S1 | Snow blower light | General | 3 | Active |
| US4686025A | Apparatus for the production of a metal by electrolyzing halides in a molten salt bath, by a simultaneous continuous double deposit | Chemistry; Metallurgy | 3 | Expired |
| USD850493S1 | Snow thrower battery housing | General | 2 | Active |
| US4171205A | Process for obtaining an aluminum sulfate hydrate from an impure sulfuric acid solution of aluminum sulfate | Chemistry; Metallurgy | 2 | Expired |
| USD1037923S1 | Multi-piece sled | General | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.