Walter Herrmann
13Patents
8h-index
30Co-inventors
72Inventor score
Filing activity: May 24, 1974 → Feb 3, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4259211A | Catalyst for the oxidation of acrolein and methacrolein to acrylic acid and methacrylic acid, respectively | Performing Operations; Transporting | 49 | Expired |
| US4476772A | Caging seal for hydraulic elevator or the like | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4297247A | Preparation of coated catalysts | Performing Operations; Transporting | 40 | Expired |
| US4305843A | Preparation of coated catalysts | Performing Operations; Transporting | 28 | Expired |
| US6074081A | Apparatus and method for processing sheet articles such as bank notes | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6151534A | Method for processing sheet material such as bank notes | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4449868A | Apparatus for threading holes | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4009125A | Spherical refining catalyst and process for its manufacture | Chemistry; Metallurgy | 8 | Expired |
| US3942448A | Apparatus for consolidating ballast | Fixed Constructions | 5 | Expired |
| US7215454B2 | Device for substrate treatment by means of laser radiation | Physics | 5 | Expired |
| US9666007B2 | Method and apparatus for handling value documents | Physics | 2 | Active |
| USH1362H | Drive mechanism for elevator door | General | 2 | Active |
| US10315239B2 | Forming tool for the production of a hollow component, and method for operating the forming tool | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.