Clinton S. Hartmann
41Patents
14h-index
24Co-inventors
81Inventor score
Filing activity: Aug 2, 1972 → Dec 18, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4577168A | Notch filter | Electricity | 61 | Expired |
| US6708881B2 | Reader for a high information capacity SAW identification tag and method of use thereof | Physics | 47 | Expired |
| US6759789B2 | Surface acoustic wave identification tag having an interdigital transducer adapted for code discrimination and methods of operation and manufacture thereof | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6756880B2 | Reader and response control system for discrimination between multiple surface acoustic wave identification tags and method of operation thereof | Physics | 27 | Expired |
| US4353046A | Surface acoustic wave device with reflectors | Electricity | 26 | Expired |
| US4168509A | Method for transmitting and receiving compatible high resolution television pictures | Electricity | 25 | Expired |
| US3961293A | Multi-resonant surface wave resonator | Electricity | 18 | Expired |
| US6966493B2 | Surface acoustic wave identification tag having enhanced data content and methods of operation and manufacture thereof | Physics | 18 | Expired |
| US4049958A | Programable filter using chirp-Z transform | Physics | 18 | Expired |
| US4599587A | Impedance element | Electricity | 18 | Expired |
| US4663664A | Electronic ticket method and apparatus for television signal scrambling and descrambling | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5646584A | Saw filter including electrodes of opposing polarity | Electricity | 17 | Expired |
| US4999535A | Saw transducer with improved bus-bar design | Electricity | 15 | Expired |
| US4028648A | Tunable surface wave device resonator | Electricity | 14 | Expired |
| US6268782A | Electro-acoustic device with a variable acoustic wave velocity piezoelectric substrate | Electricity | 14 | Expired |
| US7084768B2 | Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof | Physics | 12 | Expired |
| US5610566A | Saw filter with a coupled saw impedance element | Electricity | 12 | Expired |
| US4454488A | Surface acoustic wave resonator with middle grating | Electricity | 12 | Expired |
| US3946342A | Weighting surface wave filters by withdrawing electrodes | Electricity | 12 | Expired |
| US4682223A | Descrambler unit method and apparatus for television signal descrambling | Electricity | 11 | Expired |
| US4575696A | Method for using interdigital surface wave transducer to generate unidirectionally propagating surface wave | Electricity | 10 | Expired |
| US6958696B2 | Transfer function system for determining an identifier on a surface acoustic wave identification tag and method of operating the same | Electricity | 9 | Expired |
| US7030762B2 | Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof | Physics | 9 | Expired |
| US4403252A | Television scrambling and unscrambling method and apparatus | Electricity | 9 | Expired |
| US4063198A | Acoustic ridge interactive structure | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.