Granted Patent
Utility
US 4,892,741 · App. 07/204,056
Press coated DHP tablets
Inventors:
Andreas Ohm, Helmut Luchtenberg, Shinji Maegata, Wolfgang Opitz
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Jun 8, 1988
Inventors
Andreas Ohm
Helmut Luchtenberg
Shinji Maegata
Wolfgang Opitz
Assignee (at issue)
Bayer Aktiengesellschaft
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.