Granted Patent
Utility
US 5,153,128 · App. 07/669,574
Heat-resistant .beta.-galactosyltransferase, its production process and its use
Inventors:
Toru Nakayama, Yukiko Kodama, Norihide Amano, Masahiro Nakao, Yuji Shibano, Teruo Amachi
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Mar 14, 1991
Inventors
Toru Nakayama
Yukiko Kodama
Norihide Amano
Masahiro Nakao
Yuji Shibano
Teruo Amachi
Assignee (at issue)
SUNTORY HOLDINGS LIMITED
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.