Per Persson
13Patents
5h-index
2Co-inventors
52Inventor score
Filing activity: Feb 27, 1976 → Nov 8, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4981250A | Explosion-welded pipe joint | Performing Operations; Transporting | 113 | Expired |
| USD250711S | Loud-speaker device for cars | General | 25 | Expired |
| US4555053A | Method of joining together two pipe ends to form a pipe of metal | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4099026A | Loudspeaker for vehicles | Performing Operations; Transporting | 10 | Expired |
| US4496096A | Method of joining metal elements by explosion welding | Performing Operations; Transporting | 7 | Expired |
| US4746150A | Joint for joining together two pipe ends | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4915154A | Counter reflector and method of drying a web with the aid of same | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5104027A | Method of explosion welding | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4095734A | Metal wall provided with either external or internal cladding | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4120439A | Method for welding by explosion of powder material on a firm surface | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4561585A | Method of splicing metal elements by means of explosion-welding | Performing Operations; Transporting | 3 | Expired |
| US4986461A | Method of constructing tools intended for use in work carried out with the aid of shock-wave generating energy sources | Performing Operations; Transporting | 1 | Expired |
| USD310282S | Counter reflector for use in drying webs | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.