Granted Patent
Utility
US 4,548,729 · App. 06/601,475
Aqueous foam-inhibiting compositions containing alkyl polyethylene glycol alkyl ethers
Inventors:
Karl Schmid, Horst Baumann, Jurgen Geke, Hans-Gunther Germscheid, Werner Ludecke, Robert Piorr, Christian Rossmann, Rolf Scharf, Hans-Joachim Schlussler
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: Apr 18, 1984
Inventors
Karl Schmid
Horst Baumann
Jurgen Geke
Hans-Gunther Germscheid
Werner Ludecke
Robert Piorr
Christian Rossmann
Rolf Scharf
Hans-Joachim Schlussler
Assignee (at issue)
HENKEL AG & CO. KGAA
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.