Granted Patent
Utility
US 5,888,822 · App. 08/538,959
Erythrocyte sedimentation rate control
Inventor:
Wayne R. Hengstenberg
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Oct 4, 1995
Inventor
Wayne R. Hengstenberg
Assignee (at issue)
HYCOR Biomedical, LLC
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.