Granted Patent
Utility
US 5,245,937 · App. 07/529,435
Method and apparatus for burning combustible solid residue from chemical plant
Inventors:
Noriaki Nakase, Masao Koyama, Masahiro Inada, Toshiaki Masaoka, Tohoru Abiko, Kenji Takahashi
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: May 29, 1990
Inventors
Noriaki Nakase
Masao Koyama
Masahiro Inada
Toshiaki Masaoka
Tohoru Abiko
Kenji Takahashi
Assignees (at issue)
Mitsui Engineering & Shipbuilding Co., Ltd.
Mitsui Petrochemical Industries, 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.