Krefeld
Germany
3
2012-07-12
The entities that hold a legal rights for patent applications filed by inventor Friederich Michael:
Michael Friederich from Krefeld, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Method for improving the color number of trimethylolpropane
#2 | 2012-01-12Method for isolating di-trimethylol propane
#3 | 2010-06-03Method for improving the color number of trimethylolpropane
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