Robert L. Lewis
23Patents
8h-index
5Co-inventors
68Inventor score
Filing activity: Oct 11, 1977 → Apr 3, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD457393S1 | Electric griddle splatter screen | General | 36 | Expired |
| US5170164A | Apparatus and method for recording customized road feature descriptions with feature location data | Physics | 32 | Expired |
| US4897183A | Litter screening and separating apparatus | Performing Operations; Transporting | 26 | Expired |
| US6467432B1 | Poultry house litter implement | Emerging Cross-Sectional Technologies | 19 | Expired |
| USD313553S | Combined lotion applicator and reservoir handle | General | 10 | Expired |
| US7678026B2 | Mobile physical training system and method thereof | Human Necessities | 8 | Active |
| US4685586A | Boiler penthouse access door | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6092668A | Litter screening machine | Performing Operations; Transporting | 8 | Expired |
| US4574973A | Door system for precipitators and the like | Fixed Constructions | 7 | Expired |
| US9394318B2 | Crystal polymorph of magnesium glycinate dihydrate and process for its preparation | Chemistry; Metallurgy | 5 | Active |
| US8247000B2 | Phosphate-binding magnesium salts and uses thereof | Human Necessities | 5 | Active |
| US4152853A | Multiple shutter digital device | Physics | 4 | Expired |
| US7943597B2 | Phosphate-binding chitosan and uses thereof | Human Necessities | 4 | Active |
| US8236358B1 | Phosphate-binding magnesium salts and uses thereof | Human Necessities | 2 | Active |
| US8466128B2 | Hyaluronate compositions | Human Necessities | 2 | Active |
| US9452353B2 | Game card including payment identifier | Human Necessities | 2 | Active |
| US9107882B2 | Hyaluronate compositions | Human Necessities | 0 | Active |
| US7998729B2 | Composting cage | Emerging Cross-Sectional Technologies | 0 | Active |
| US9610267B2 | Phosphate-binding magnesium salts and uses thereof | Human Necessities | 0 | Active |
| US9937134B2 | Hyaluronate compositions | Human Necessities | 0 | Active |
| US9889157B2 | Phosphate-binding magnesium salts and uses thereof | Human Necessities | 0 | Active |
| US9339481B2 | Phosphate-binding magnesium salts and uses thereof | Human Necessities | 0 | Active |
| US10150784B2 | Crystal polymorph of magnesium glycinate dihydrate and process for its preparation | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.