John Chen
49Patents
18h-index
14Co-inventors
78Inventor score
Filing activity: Feb 27, 1989 → Oct 17, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD325863S | Hammer | General | 67 | Expired |
| USD324473S | Tool handle | General | 64 | Expired |
| US6778698B1 | Method and apparatus for digital image segmentation | Physics | 43 | Expired |
| USD519348S1 | Hammer handle | General | 36 | Expired |
| USD511082S1 | Hammer handle | General | 33 | Expired |
| USD478265S1 | Hammer | General | 31 | Expired |
| USD449770S | Hammer | General | 31 | Expired |
| US5926911A | Shock absorbing handle grip for tool handle | Emerging Cross-Sectional Technologies | 30 | Expired |
| USD531875S1 | Hammer handle | General | 29 | Expired |
| US6170362A | Shock-proof structure of the handle cover of a hand tool | Performing Operations; Transporting | 26 | Expired |
| USD422869S | Tool handle cover | General | 24 | Expired |
| US8994800B2 | Credential transfer management camera system | Electricity | 24 | Active |
| US7066052B2 | Hammer having enhanced strength | Performing Operations; Transporting | 23 | Expired |
| US5845364A | Shock absorbent handle assembly for a hand tool | Emerging Cross-Sectional Technologies | 23 | Expired |
| USD524627S1 | Hammer shield | General | 23 | Expired |
| USD478264S1 | Hammer | General | 21 | Expired |
| US7497488B2 | Rotary latch | Emerging Cross-Sectional Technologies | 21 | Active |
| US6405616B1 | Hammer with shock-reduction structure | Performing Operations; Transporting | 18 | Expired |
| USD380654S | Combination cultivating and trenching tool head | General | 18 | Expired |
| USD455626S1 | Hammer | General | 18 | Expired |
| USD535539S1 | Hammer handle | General | 18 | Expired |
| US9036016B2 | Initial camera mode management system | Electricity | 16 | Active |
| US9025014B2 | Device detection camera system | Electricity | 15 | Active |
| US8995903B2 | Credential transfer management camera network | Electricity | 14 | Active |
| US7295711B1 | Method and apparatus for merging related image segments | Electricity | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.