Granted Patent
Utility
US 6,486,327 · App. 10/129,189
Method for producing hydroxymethylpyridines
Inventors:
Karlheinz Giselbrecht, Rudolf Hermanseder
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: May 2, 2002
Inventors
Karlheinz Giselbrecht
Rudolf Hermanseder
Assignee (at issue)
DSM Fine Chemicals Austria NFG GmbH & Co KG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.