IP Library Granted Patent US 6,287,461
Granted Patent Utility
US 6,287,461 · App. 09/397,457

Tandem system for adsorptive separation

Inventors: Wolfgang Demmer, Dietmar Nussbaumer, Abdul Weiss
Patented Case View Patent ↗
Granted: Sep 11, 2001 Filed: Sep 16, 1999
Inventors
Wolfgang Demmer
Dietmar Nussbaumer
Abdul Weiss
Assignee (at issue)
Sartorius AG

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,287,461
App. No.
09/397,457
Filed
1999-09-16
Granted
2001-09-11
Kind
A