Hans Kraemer
39Patents
14h-index
49Co-inventors
81Inventor score
Filing activity: Aug 29, 1984 → Mar 5, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7788756B2 | Brush part for electric toothbrush | Emerging Cross-Sectional Technologies | 90 | Expired |
| US7137166B1 | Toothbrush | Human Necessities | 58 | Expired |
| USD465655S1 | Set of bristles for a toothbrush | General | 50 | Expired |
| US7297303B2 | Process of injection molding composite articles and toothbrush obtainable thereby | Performing Operations; Transporting | 44 | Expired |
| US7222381B2 | Electric toothbrush with a replaceable head section | Human Necessities | 41 | Expired |
| USD446941S | Toothbrush head | General | 30 | Expired |
| US8763196B2 | Toothbrush incorporating a flexible undulating region | Human Necessities | 28 | Active |
| US4801455A | Pharmaceutical formulation and process for its preparation | Human Necessities | 27 | Expired |
| US9655435B2 | Toothbrush bristle arrangement | Human Necessities | 25 | Active |
| US5091521A | Cis-platinum complexes, a process for the preparation thereof, and pharmaceuticals containing these compounds | Chemistry; Metallurgy | 23 | Expired |
| US8069524B2 | Toothbrush | Human Necessities | 22 | Active |
| US4730069A | Cis-platinum complexes with a pentaerythritol derivative as the ligand, a process for their preparation and a pharmaceutical agent containing these compounds | Chemistry; Metallurgy | 18 | Expired |
| US10631623B2 | Device | Human Necessities | 17 | Active |
| USD932190S1 | Toothbrush head | General | 16 | Active |
| US8132284B1 | Toothbrush | Human Necessities | 13 | Expired |
| US8006868B2 | Dispenser cap for pressurised fluids | Performing Operations; Transporting | 13 | Active |
| US8099819B2 | Toothbrush | Electricity | 12 | Active |
| US4762648A | Monofunctional and bisfunctional anthraquinone-(oxy-2,3-oxidopropanes), processes for their preparation, and their use as drugs | Chemistry; Metallurgy | 7 | Expired |
| US8516645B2 | Device | Human Necessities | 7 | Active |
| US7744360B2 | Process for making toothbrushes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4948880A | Anthracycline derivatives having cytostatic activity | Human Necessities | 6 | Expired |
| US5049549A | Rhodomycins with a modified carbohydrate unit | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4713371A | Anthracycline derivatives and their use as cytostatics | Chemistry; Metallurgy | 5 | Expired |
| USD942149S1 | Toothbrush | General | 5 | Active |
| USD767899S1 | Toothbrush head | General | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.