Derek Roberts
39Patents
11h-index
32Co-inventors
75Inventor score
Filing activity: Feb 22, 1982 → Feb 6, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5503423A | Swing away hitch assembly for a trailer and method of manufacturing same | Performing Operations; Transporting | 85 | Expired |
| US4417666A | Container and closure having tamper-proof feature | Performing Operations; Transporting | 27 | Expired |
| USD734543S1 | Clipper | General | 25 | Active |
| USD734544S1 | Clipper | General | 19 | Active |
| USD340616S | Beverage dispensing head | General | 16 | Expired |
| USD750840S1 | Clipper | General | 15 | Active |
| USD890924S1 | Securement device assembly | General | 15 | Active |
| USD436508S | Can opener | General | 14 | Expired |
| USD748861S1 | Clipper | General | 12 | Active |
| USD770681S1 | Clipper | General | 11 | Active |
| USD831819S1 | Irrigator | General | 11 | Active |
| USD896364S1 | Irrigator | General | 9 | Active |
| USD767823S1 | Clipper | General | 9 | Active |
| USD874643S1 | Irrigator | General | 8 | Active |
| USD810291S1 | Skin stapler | General | 8 | Active |
| US9283364B2 | Method and apparatus for an applicator | Human Necessities | 7 | Active |
| US10799679B2 | Securement device and assembly | Human Necessities | 7 | Active |
| US10596305B2 | Suction canister and corresponding systems and methods | Human Necessities | 7 | Active |
| USD806893S1 | Protective cover | General | 7 | Active |
| USD770619S1 | Skin stapler | General | 7 | Active |
| USD671377S1 | Tongs | General | 6 | Active |
| USD1002006S1 | Securement device assembly component | General | 5 | Active |
| US10213067B2 | Dispenser | Human Necessities | 5 | Active |
| USD792650S1 | Clipper | General | 4 | Active |
| USD787898S1 | Tongs | General | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.