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:
Dec. 29, 2015
Filed:
Jan. 30, 2014
Applicant:
Rainin Instrument, Llc, Oakland, CA (US);
Inventors:
James S Petrek, Danville, CA (US);
David M Johnson, San Francisco, CA (US);
Assignee:
Rainin Instrument, LLC, Oakland, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L 3/02 (2006.01); G01N 1/14 (2006.01);
U.S. Cl.
CPC ...
B01L 3/0224 (2013.01); B01L 3/0217 (2013.01); B01L 3/0231 (2013.01);
Abstract
An air displacement pipette includes a segmented, stepped piston configured to displace additional air at a higher velocity during a blowout stroke, thereby enabling improved dispensing accuracy by more completely dislodging adhering liquid from a pipette tip following the preceding dispensing stroke.