Peter Marr
10Patents
4h-index
13Co-inventors
57Inventor score
Filing activity: Nov 25, 1975 → Dec 21, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4077670A | Method and apparatus for advancing and supporting an underground mine gallery | Fixed Constructions | 8 | Expired |
| US4088488A | Photographic elements containing nitroxyl radical oxidants | Physics | 7 | Expired |
| US4252476A | Hydraulically operated mine prop with safety valve | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4008578A | Pit prop assembly | Fixed Constructions | 5 | Expired |
| US4094153A | Breast roof support system for longwall mining | Fixed Constructions | 4 | Expired |
| US5514535A | Stabilized vinyl sulfone hardening compositions useful in photographic manufacturing | Physics | 4 | Expired |
| US4183700A | Walking mine support | Fixed Constructions | 3 | Expired |
| US4094154A | Roof prop apparatus and method for longwall mining | Fixed Constructions | 2 | Expired |
| US5658721A | Stabilized vinyl sulfone hardening compositions useful in photographic manufacturing | Physics | 1 | Expired |
| US4175891A | Auxiliary walking mine support | Fixed Constructions | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.