Hans Maass
15Patents
8h-index
10Co-inventors
69Inventor score
Filing activity: Jan 30, 1976 → Nov 28, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4658502A | Sheet metal joining apparatus | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4181002A | Tools for bending sheet metal | Performing Operations; Transporting | 26 | Expired |
| US4584753A | Apparatus for connecting sheet metal pieces | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5040278A | Power-driven pincer-type tool holder for use in handling apparatuses | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4835850A | Apparatus for joining pieces of sheet metal | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5203812A | Method of connecting two components | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5046228A | Tool set for connecting sheet metal pieces | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4972565A | Tool set for connecting sheet metal pieces | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4060046A | Hand tool | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4092840A | Device for flanging the edges of sheet sections | Performing Operations; Transporting | 6 | Expired |
| US4928370A | Tool set for connecting superposed sheet metal work pieces | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4483477A | Clamping device for tubes to be welded together | Performing Operations; Transporting | 4 | Expired |
| US11078077B2 | Method for producing synthesis gas | Chemistry; Metallurgy | 2 | Active |
| US8623624B2 | Method for biotechnological production of a hydrogen carrier | Chemistry; Metallurgy | 0 | Active |
| US9938144B2 | Process for producing synthesis gas and electrical energy | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.