David Coffin
34Patents
19h-index
26Co-inventors
77Inventor score
Filing activity: Feb 10, 1994 → Jul 13, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7086160B2 | Bidirectional shaving implement | Performing Operations; Transporting | 96 | Expired |
| US6122826A | Disposable cartridge holder for single direction pivoting cartridge | Performing Operations; Transporting | 77 | Expired |
| US7140116B2 | Razor having a multi-position shaving head | Performing Operations; Transporting | 76 | Expired |
| US5953824A | Razors providing pivoting and swivelling razor head support | Performing Operations; Transporting | 71 | Expired |
| US6560881B2 | Shaving razor with pivoting blade carrier and replaceable blade cartridge therefor | Performing Operations; Transporting | 44 | Expired |
| US7802368B2 | Razor assembly | Performing Operations; Transporting | 37 | Active |
| USD435315S | Razor handle | General | 35 | Expired |
| US6655028B2 | Wet shaving device with guard/transfer roller and replaceable shaving aid | Performing Operations; Transporting | 34 | Expired |
| US6557265B2 | Apparatus for releasably retaining a disposable razor cartridge | Performing Operations; Transporting | 33 | Expired |
| US6996908B2 | Wet shaving assembly | Performing Operations; Transporting | 32 | Expired |
| US7047646B2 | Wet shaving cartridge with four blade edges | Performing Operations; Transporting | 32 | Expired |
| USD423845S | Razor holder | General | 30 | Expired |
| US7210229B2 | Razor cartridge | Performing Operations; Transporting | 30 | Expired |
| US6167625A | Shaving implement | Performing Operations; Transporting | 29 | Expired |
| USD421320S | Razor handle | General | 26 | Expired |
| USD464222S1 | Razor holder | General | 24 | Expired |
| US6769180B2 | Shaving implement having static and dynamic blades | Performing Operations; Transporting | 24 | Expired |
| US6442850B1 | Shaving razor using blade cartridge and blade cartridge therefor | Performing Operations; Transporting | 20 | Expired |
| US8707562B2 | Wet shaving cartridge with four blade edges | Performing Operations; Transporting | 20 | Active |
| USD424744S | Razor guard bar | General | 19 | Expired |
| USD494796S1 | Razor caddy | General | 19 | Expired |
| US7469477B2 | Razor assembly | Performing Operations; Transporting | 18 | Active |
| US5966822A | Holder for a wet shaver | Human Necessities | 17 | Expired |
| US7370419B2 | Replacement cartridge for a razor assembly | Performing Operations; Transporting | 16 | Expired |
| USD533380S1 | Razor caddy | General | 15 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.