Granted Patent
Utility
US 6,284,915 · App. 09/261,342
Process for preparing 2-amino malonic acid derivatives and 2-amino-1,3-propanediol derivatives, and intermediates for preparing the same
Inventors:
Susumu Hirase, Shigeo Sasaki, Masahiko Yoneta, Ryoji Hirose, Tetsuro Fujita
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Mar 3, 1999
Inventors
Susumu Hirase
Shigeo Sasaki
Masahiko Yoneta
Ryoji Hirose
Tetsuro Fujita
Assignees (at issue)
Kabushiki Kaisha Taito
Welfide Corporation
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.