Granted Patent
Utility
US 6,325,938 · App. 09/612,240
Method of cleaning membrane assembly with detergent
Inventors:
Satoshi Miyashita, Kenji Honjyo, Osami Kato, Kenji Watari, Takamitsu Takashima, Masanori Itakura, Hiroyuki Okazaki, Ikuo Kinoshita, Noriko Inoue
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Jul 7, 2000
Inventors
Satoshi Miyashita
Kenji Honjyo
Osami Kato
Kenji Watari
Takamitsu Takashima
Masanori Itakura
Hiroyuki Okazaki
Ikuo Kinoshita
Noriko Inoue
Assignees (at issue)
MITSUBISHI ELECTRIC CORPORATION
Mitsubishi Rayon Engineering Co., Ltd.
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.