Granted Patent
Utility
US 5,238,831 · App. 07/884,465
Stabilization of carboxyl esterase
Inventors:
Johanna H.G.M. Mutsaers, Cornelis Jacobus Van Der Laken, Cornelis P. Broekhuizen, Wilhemus J. Quax
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: May 14, 1992
Inventors
Johanna H.G.M. Mutsaers
Cornelis Jacobus Van Der Laken
Cornelis P. Broekhuizen
Wilhemus J. Quax
Assignee (at issue)
Gist-Brocades
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.