TK

Thomas Kerk

PA Preussag Aktiengesellschaft: 1 patents #7 of 23Top 35%
Overall (All Time): #3,816,246 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5182731 Well bore data transmission apparatus Hans-Juergen Hoelscher, Wilfried Tuennermann, Helmut Winnacker 1993-01-26