Hans Appel
21Patents
9h-index
21Co-inventors
75Inventor score
Filing activity: Sep 16, 1981 → Jul 12, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5108400A | Striking tool for surgical instruments | Performing Operations; Transporting | 92 | Expired |
| US4751953A | Lateral pull roll-up blind | Fixed Constructions | 38 | Expired |
| US7827718B2 | Hand-held power tool with an identification element | Emerging Cross-Sectional Technologies | 25 | Active |
| US9073160B2 | Suction device and control method | Emerging Cross-Sectional Technologies | 25 | Active |
| US5964733A | Suction device for medical purposes | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5542929A | Suction device for medical use | Emerging Cross-Sectional Technologies | 14 | Expired |
| US9067292B2 | Vacuum device | Emerging Cross-Sectional Technologies | 14 | Active |
| US4535830A | Lateral-traction roller shade | Fixed Constructions | 13 | Expired |
| US5907208A | Rotor for an electric motor | Electricity | 12 | Expired |
| US9231341B2 | Hand-held power tool | Performing Operations; Transporting | 9 | Active |
| US8609883B2 | Continuous method for producing acyl peroxides | Chemistry; Metallurgy | 4 | Active |
| US8017801B2 | Method for producing acyl peroxides | Chemistry; Metallurgy | 4 | Active |
| US9656361B2 | Dust removal system for a handheld power tool | Human Necessities | 4 | Active |
| US4888537A | Method of monitoring the end position of a controlling element and circuit arrangement for the carrying out of the method | Electricity | 3 | Expired |
| US4841931A | Method of adjusting a controlling element and circuit arrangement for the carrying out of the method | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US4370276A | Process for the continuous preparation of dialkylperoxydicarbonates | Chemistry; Metallurgy | 2 | Expired |
| US5488177A | Method for the preparation of alkyl hydroperoxide solutions containing little or no water | Chemistry; Metallurgy | 2 | Expired |
| US10759035B2 | Suction extraction device | Performing Operations; Transporting | 1 | Active |
| US8128886B2 | Reactor for preparing organic peroxides via the intermediate of a solid hydroperoxide | Chemistry; Metallurgy | 1 | Active |
| US10718643B2 | Hand-held power tool | Physics | 0 | Active |
| US4782189A | Process for the continuous preparation of lauroyl peroxide | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.