PP

Per Persson

NA Nitro Nobel Ab: 4 patents #2 of 43Top 5%
EA Exploweld Ab: 3 patents #2 of 3Top 70%
AV Ab Volvo: 2 patents #56 of 373Top 20%
IA Infrarodteknik Ab: 2 patents #4 of 10Top 40%
Overall (All Time): #592,167 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5104027 Method of explosion welding 1992-04-14
4986461 Method of constructing tools intended for use in work carried out with the aid of shock-wave generating energy sources 1991-01-22
4981250 Explosion-welded pipe joint 1991-01-01
D310282 Counter reflector for use in drying webs 1990-08-28
4915154 Counter reflector and method of drying a web with the aid of same 1990-04-10
4746150 Joint for joining together two pipe ends Bengt Persson 1988-05-24
4561585 Method of splicing metal elements by means of explosion-welding 1985-12-31
4555053 Method of joining together two pipe ends to form a pipe of metal Bengt Persson 1985-11-26
4496096 Method of joining metal elements by explosion welding 1985-01-29