Roger Frei
10Patents
3h-index
9Co-inventors
53Inventor score
Filing activity: Apr 5, 1977 → Dec 15, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4893650A | One way high pressure flow control fittings | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5987938A | Trailer kingpin locking apparatus | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4151978A | Stroke limiting apparatus for hydraulic cylinders | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11559380B2 | Dental prosthesis blank | Emerging Cross-Sectional Technologies | 0 | Active |
| US11684462B2 | Dental prosthesis | Emerging Cross-Sectional Technologies | 0 | Active |
| US12324713B2 | Manufacturing device for the manufacture of a blank for a dental restoration part, method for manufacturing a blank for a dental restoration part, as well as blank | Human Necessities | 0 | Active |
| US11718028B2 | Stereolithography method | Performing Operations; Transporting | 0 | Active |
| US12150824B2 | System for the manufacture of a dental prosthesis | Emerging Cross-Sectional Technologies | 0 | Active |
| US11051917B2 | Prosthesis as well as retrofit kit for a prosthesis | Human Necessities | 0 | Active |
| US11974891B2 | Method for producing a dental prosthesis, blank and dental prosthesis | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.