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:
Mar. 02, 1999
Filed:
Mar. 09, 1995
Applicant:
Inventors:
Fred K Forster, Seattle, WA (US);
Ronald L Bardell, Seattle, WA (US);
Alan P Blanchard, Seattle, WA (US);
Martin A Afromowitz, Mercer Is., WA (US);
Nigel R Sharma, Bothel, WA (US);
Assignee:
University of Washington, Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417322 ; 4174132 ; 137814 ; 137826 ; 137833 ;
Abstract
Micropumps fabricated by micromachining techniques and employing fixed or no-moving-parts valves. As one aspect of the invention, a laser-assisted chemical etching technique is employed for providing smooth-walled, curved configuration necessary to obtain the desired flow characteristics of the valves that are used in conjunction with the micropump.