James M. Clark
53Patents
16h-index
33Co-inventors
84Inventor score
Filing activity: Apr 7, 1975 → Dec 6, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3982077A | Asynchronous multiplexer and demultiplexer combination | Electricity | 44 | Expired |
| US4030045A | Digital double differential phase-locked loop | Electricity | 40 | Expired |
| US4658094A | Encryption apparatus and methods for raising a large unsigned integer to a large unsigned integer power modulo a large unsigned integer | Electricity | 37 | Expired |
| US7681408B2 | Automated ice vending machine and method of vending ice | Physics | 36 | Active |
| US5289397A | High-speed modulo exponentiator device | Physics | 36 | Expired |
| US5322776A | DNA sequences encoding phospholipase A.sub.2 enzyme and processes for producing enzyme | Human Necessities | 35 | Expired |
| US5354677A | Intracellular phospholipase A.sub.2 enzyme | Human Necessities | 32 | Expired |
| US5593878A | Recombinant phospholipase A.sub.2 enzyme | Human Necessities | 32 | Expired |
| US6934388B1 | Method and apparatus for generating random permutations | Physics | 23 | Expired |
| US4529494A | Bipolar electrode for Hall-Heroult electrolysis | Chemistry; Metallurgy | 23 | Expired |
| US3982074A | Automatic channel assignment circuit | Electricity | 23 | Expired |
| US4039960A | Automatic phasing circuit to transfer digital data from an external interface circuit to an internal interface circuit | Electricity | 19 | Expired |
| US5982897A | Selective denial of encrypted high precision data by indirect keying | Electricity | 19 | Expired |
| US5615898A | Bead seal motorcycle gasket | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5527698A | Recombinant phospholipase A.sub.2 enzyme | Human Necessities | 18 | Expired |
| US5693515A | Metal complexed serine protease inhibitors | Chemistry; Metallurgy | 18 | Expired |
| USD363979S | Bead seal gasket | General | 16 | Expired |
| US4402041A | Plural storage areas with different priorities in a processor system separated by processor controlled logic | Physics | 15 | Expired |
| US5734721A | Anti-spoof without error extension (ANSWER) | Electricity | 14 | Expired |
| US4472258A | Anode for molten salt electrolysis | Chemistry; Metallurgy | 13 | Expired |
| US6965634B1 | Non-stationary dither code generation and detection | Electricity | 12 | Expired |
| US4462889A | Non-consumable electrode for molten salt electrolysis | Chemistry; Metallurgy | 12 | Expired |
| US6441601B1 | Phase meter using a permuter | Physics | 10 | Expired |
| US4379033A | Method of manufacturing aluminum in a Hall-Heroult cell | Chemistry; Metallurgy | 9 | Expired |
| USD445760S | Charger | General | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.