RK

Rudolf Koch

SL Sulzer Brothers Limited: 2 patents #3 of 49Top 7%
SA Siemens Aktiengesellschaft: 1 patents #208 of 995Top 25%
Overall (1989): #7,421 of 140,708Top 6%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4883492 Metal bone implant Otto Frey 1989-11-28
4841222 Switched Current source 1989-06-20
4795466 Artificial crucial ligament for a knee joint Karl-Gerhart Stuhmer, Otto Frey 1989-01-03