Koln
Germany
6
2006-06-06
The entities that hold a legal rights for patent applications filed by inventor Kriehn Hartmut:
Hartmut Kriehn from Koln, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Cooled screw-type vacuum pump
#2 | 2005-11-15Two shaft vacuum pump with cantilevered rotors
#3 | 2005-07-07Vacuum pump
#4 | 2005-03-31Cooled screw vacuum pump
#5 | 2005-03-08Two-shaft vacuum pump
#6 | 2005-01-27Tempering method for a screw-type vacuum pump
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