Weinheim
Germany
2
2005-11-17
The entities that hold a legal rights for patent applications filed by inventor Littmann Gerd:
Gerd Littmann from Weinheim, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Distillative preparation of IPDA having a high cis/trans isomer ratio
#2 | 2005-11-03Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio
4944163 ⎘