The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1994
Filed:
Apr. 27, 1993
Applicant:
Inventor:
Douglas T Gjerde, Saratoga, CA (US);
Assignee:
Sarasep, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 210656 ; 96101 ; 96102 ;
Abstract
Liquid chromatography separation columns can be protected from contamination with particulate and dissolved contaminants by the use of a thin protective pad which removes contaminants from a sample stream prior to separation of the sample on the separation column. The protective pad may be in the form of a guard disk positioned inline or directly contacting the separation column.