Herfried Lammer
25Patents
9h-index
11Co-inventors
72Inventor score
Filing activity: Jun 22, 1998 → Aug 5, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8105184B2 | System and method of using shear thickening materials in sports products | Emerging Cross-Sectional Technologies | 23 | Active |
| US7080849B2 | Ski, method of stiffening the ski and method of manufacturing the ski | Human Necessities | 19 | Expired |
| US8602922B2 | Methods and apparatuses for enhancing performance in racket sports | Human Necessities | 19 | Active |
| US7059028B2 | Method of making certain flexible piezoelectric films | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6106417A | Lightweight tennis racket having high frequency | Human Necessities | 16 | Expired |
| USD460135S1 | Racquet throat | General | 15 | Expired |
| US7044869B2 | Racket for ball games and production process | Human Necessities | 14 | Expired |
| USD468380S1 | Racquet throat | General | 13 | Expired |
| US7140984B2 | Racket for ball games and production process | Human Necessities | 10 | Expired |
| US7098578B2 | Flexible piezoelectric films | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6861782B2 | Flexible piezoelectric films | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8342989B2 | Sporting goods with graphene material | Chemistry; Metallurgy | 7 | Active |
| US7160286B2 | Racket with self-powered piezoelectric damping system | Human Necessities | 6 | Expired |
| USD492744S1 | Racquet head | General | 5 | Expired |
| US6974397B2 | Racket with self-powered piezoelectric damping system | Human Necessities | 5 | Expired |
| US7077767B2 | Racket for ball games and production process | Human Necessities | 4 | Expired |
| US7981502B2 | Grip tape for sports implements | Emerging Cross-Sectional Technologies | 2 | Active |
| US8894517B2 | Sporting goods with graphene material | Chemistry; Metallurgy | 2 | Active |
| US7070525B2 | Racket for ball games | Human Necessities | 2 | Expired |
| US7556575B2 | Dampening device for a ball games racket | Human Necessities | 2 | Expired |
| US7108617B2 | Racket for ball games | Human Necessities | 2 | Expired |
| US10195506B2 | System and method of using shear thickening materials in sports products | Emerging Cross-Sectional Technologies | 1 | Active |
| US9656130B2 | Sporting goods with graphene material | Chemistry; Metallurgy | 0 | Active |
| US9364730B2 | Methods and apparatuses for enhancing performance in racket sports | General | 0 | Revoked |
| US12226677B2 | Ball game racket frame and method for manufacturing a ball game racket | Textiles; Paper | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.