Friedrich-Wilhelm Schumacher

UN Unknown: 7 patents #1,646 of 83,584Top 2%

GM Gebr. Schumacher Gerätebaugesellschaft Mbh: 5 patents #1 of 6Top 20%

SA Siemens Aktiengesellschaft: 3 patents #4,667 of 22,248Top 25%

FK Fried Krupp: 1 patents #80 of 258Top 35%

RG Rasspe Systemtechnik Gmbh: 1 patents #6 of 12Top 50%

Overall (All Time): #146,814 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #	Title	Co-Inventors	Date
5034703	Frequency synthesizer	—	1991-07-23
4233910	Railway car hydraulically dampened traction rods	—	1980-11-18