Richard A. Williams
100Patents
24h-index
85Co-inventors
93Inventor score
Filing activity: Sep 6, 1974 → Jul 23, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6132311A | Poker game | Human Necessities | 216 | Expired |
| US5351617A | Method for laser-discharge imaging a printing plate | Emerging Cross-Sectional Technologies | 135 | Expired |
| US8177076B2 | Merchandising system | Human Necessities | 111 | Active |
| US8342340B2 | Merchandising system | Human Necessities | 105 | Active |
| US5559883A | Method and apparatus for secure data packet bus communication | Electricity | 90 | Expired |
| US5385092A | Laser-driven method and apparatus for lithographic imaging | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5946391A | Telephones with talker sidetone | Electricity | 76 | Expired |
| US4726056A | Shared flexible rating of telecommunications calls | Electricity | 69 | Expired |
| US5062364A | Plasma-jet imaging method | Performing Operations; Transporting | 50 | Expired |
| US5163368A | Printing apparatus with image error correction and ink regulation control | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5489326A | Gold recovery using controlled oxygen distribution pressure oxidation | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5148746A | Print-head and plate-cleaning assembly | Performing Operations; Transporting | 45 | Expired |
| US5464309A | Dual wall multi-extraction tube recovery well | Performing Operations; Transporting | 41 | Expired |
| US4400102A | Multi-color print head | Performing Operations; Transporting | 41 | Expired |
| US5983441A | Bucket insert and wash bucket | Human Necessities | 39 | Expired |
| US5358357A | Process and apparatus for high vacuum groundwater extraction | Performing Operations; Transporting | 37 | Expired |
| US4936211A | Multicolor offset press with segmental impression cylinder gear | Performing Operations; Transporting | 36 | Expired |
| US4911075A | Lithographic plates made by spark discharges | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6006397A | Bucket insert and wash bucket | Human Necessities | 32 | Expired |
| USD870988S1 | Litter box | General | 31 | Active |
| US5709505A | Vertical isolation system for two-phase vacuum extraction of soil and groundwater contaminants | Performing Operations; Transporting | 28 | Expired |
| US6966449B2 | Bulk box | Performing Operations; Transporting | 28 | Expired |
| US5174205A | Controller for spark discharge imaging | Electricity | 27 | Expired |
| US6457203B1 | Bucket insert and wash bucket | Human Necessities | 26 | Expired |
| USD850029S1 | Litter box | General | 23 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.