Horst Hautmann
17Patents
12h-index
6Co-inventors
71Inventor score
Filing activity: Apr 14, 1977 → May 6, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5222186A | Electrical apparatus for vaporizing of active substances | Human Necessities | 102 | Expired |
| USD432224S | Container for fragrant liquids | General | 41 | Expired |
| US6389610B1 | Device to dispense active substances into rinse water especially in toilet bowls | Fixed Constructions | 40 | Expired |
| USD460545S1 | Air freshener | General | 36 | Expired |
| US4168551A | Toilet flush water colorizer | Fixed Constructions | 26 | Expired |
| USD306478S | Air freshener or similar article | General | 24 | Expired |
| USRE32017E | Toilet flush water colorizer | General | 21 | Expired |
| US4164561A | Insect repellent | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4707866A | Device for adding disinfectants or the like to the flushing water of a WC | Fixed Constructions | 15 | Expired |
| USD318912S | Air ameliorant or similar article | General | 15 | Expired |
| US4117110A | Solid air-improving composition | Human Necessities | 14 | Expired |
| US4844050A | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials | Human Necessities | 12 | Expired |
| US4750471A | Evaporation apparatus for active ingredients such as pyrethrum incorporated into solid carrier materials | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6591431B2 | Device to dispense active substances into rinse water, especially in toilet bowls | Fixed Constructions | 9 | Expired |
| US4769528A | Apparatus for the evaporation of active ingredients such as, for example, pyrethrum, incorporated in cellulose or other carrier materials | Human Necessities | 9 | Expired |
| US4452393A | Vaporizing device for perfumes, insecticides and/or other volatile active substances | Human Necessities | 8 | Expired |
| US5269460A | Evaporator device, particularly for volatile active substances such as insecticides, perfumes and the like | Human Necessities | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.