Granted Patent
Utility
US 5,071,946 · App. 07/509,514
Emulsifiers and a process for the production of large particle size, homodisperse polymer dispersions using these emulsifiers
Inventors:
Adolf Schmidt, Herbert Eichenauer, Karl-Heinz Ott, Alfred Pischtschan
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Apr 16, 1990
Inventors
Adolf Schmidt
Herbert Eichenauer
Karl-Heinz Ott
Alfred Pischtschan
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.