Douglas E. Clark
13Patents
12h-index
23Co-inventors
74Inventor score
Filing activity: Dec 20, 1991 → Sep 14, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5313717A | Reactive energy fluid filled apparatus providing cushioning, support, stability and a custom fit in a shoe | Human Necessities | 189 | Expired |
| US5575088A | Shoe sole with reactive energy fluid filled toroid apparatus | Human Necessities | 121 | Expired |
| US7762008B1 | Extreme service footwear | Human Necessities | 106 | Active |
| US6205683A | Shock diffusing, performance-oriented shoes | Human Necessities | 74 | Expired |
| US7010872B2 | Modular shoe | Human Necessities | 67 | Expired |
| US7730640B2 | High performance boot | Human Necessities | 66 | Active |
| US7347012B2 | Shoe with lacing | Human Necessities | 47 | Expired |
| US7578076B2 | Modular shoe | Human Necessities | 24 | Active |
| US7320189B2 | Shoe with lacing | Human Necessities | 22 | Expired |
| US7461470B2 | Shoe footbed system and method with interchangeable cartridges | Human Necessities | 22 | Active |
| US7681333B2 | Shoe footbed system with interchangeable cartridges | Human Necessities | 22 | Active |
| US7441351B2 | Footwear for hostile environments | Human Necessities | 12 | Active |
| US7284344B2 | Modular shoe | Human Necessities | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.