David E. Calapp
13Patents
9h-index
10Co-inventors
69Inventor score
Filing activity: Oct 13, 1981 → Mar 24, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5865696A | Composite hockey stick shaft and process for making same | Human Necessities | 38 | Expired |
| US6966068B2 | Swim cap | Human Necessities | 28 | Expired |
| US4934724A | Combination beam seat support | Performing Operations; Transporting | 26 | Expired |
| US5029888A | Bicycle seat support | Performing Operations; Transporting | 24 | Expired |
| US5746955A | Process for making a composite hockey stick shaft | Performing Operations; Transporting | 23 | Expired |
| US8439442B2 | Method and apparatus to enhance proprioception and core health of the human body | Emerging Cross-Sectional Technologies | 21 | Active |
| US5240268A | Bicycle | Performing Operations; Transporting | 16 | Expired |
| US4494939A | Water ski binding | Performing Operations; Transporting | 9 | Expired |
| USD271941S | Ski clip | General | 9 | Expired |
| US5382038A | Shock absorber for a vehicle | Performing Operations; Transporting | 7 | Expired |
| USD329409S | Bicycle frame | General | 6 | Expired |
| USD324837S | Bicycle seat support | General | 4 | Expired |
| USD324358S | Vehicle beam seat support | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.