Peter Hilfinger
21Patents
14h-index
30Co-inventors
81Inventor score
Filing activity: Dec 30, 1983 → Feb 5, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467495A | Brush for an electrically powered toothbrush | Human Necessities | 188 | Expired |
| US5974615A | Rotary electric toothbrush with stroke-type bristle movement | Emerging Cross-Sectional Technologies | 164 | Expired |
| US5344317A | Electrically powered appliance for oral hygiene | Human Necessities | 160 | Expired |
| US6058541A | Crimped bristle toothbrush | Emerging Cross-Sectional Technologies | 118 | Expired |
| US5652990A | Brush section for an electric toothbrush | Emerging Cross-Sectional Technologies | 87 | Expired |
| US5943723A | Electric toothbrush | Human Necessities | 83 | Expired |
| US5842244A | Brush section for an electric toothbrush | Human Necessities | 79 | Expired |
| US5862558A | Brush section for an electric toothbrush | Human Necessities | 65 | Expired |
| US5613258A | Toothbrush | Human Necessities | 51 | Expired |
| US6009589A | Brush section for a toothbrush | Human Necessities | 51 | Expired |
| US6785929B2 | Electric toothbrush | Performing Operations; Transporting | 33 | Expired |
| US6102700A | Cleansing implement and electrically powered dental cleansing device | Performing Operations; Transporting | 29 | Expired |
| US5545968A | Motor-powered appliance for personal use | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6267593A | Cleansing implement and electrically powered dental cleansing device | Performing Operations; Transporting | 23 | Expired |
| US6226869A | Electric shaver | Performing Operations; Transporting | 14 | Expired |
| US7682153B2 | Indicating teeth cleaning time | Human Necessities | 12 | Expired |
| US8172574B2 | Indicating teeth cleaning time | Human Necessities | 8 | Active |
| US4578861A | Shaving head for dry shavers | Performing Operations; Transporting | 5 | Expired |
| US4726116A | Shaving head for dry shavers | Performing Operations; Transporting | 3 | Expired |
| US4628606A | Trimmer for dry shaver | Performing Operations; Transporting | 1 | Expired |
| US7675203B2 | Electric drive unit for generating an oscillating displacement | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.