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:
Oct. 21, 2008
Filed:
Jun. 30, 2000
Yukie Tokiwa, Hitachinaka, JP;
Kyoko Imai, Hitachinaka, JP;
Lotterer Siegfried, Munich, DE;
Krause Friedemann, Penzberg, DE;
Yukie Tokiwa, Hitachinaka, JP;
Kyoko Imai, Hitachinaka, JP;
Lotterer Siegfried, Munich, DE;
Krause Friedemann, Penzberg, DE;
Hitachi, Ltd., Tokyo, JP;
Roche Diagnostics Operations, Inc., Indianapolis, IN (US);
Abstract
A method of pipetting an accurate quantity of liquid comprising the steps of drawing water into a pipetting chip () from a liquid container (), drawing air into said tip first slowly at a first rate and then quickly at a second rate to turn said drawn water into a mist of drops in said tip () and increase the relative humidity of the air in said tip (), waiting a preset time period, and drawing a tested liquid into said tip (). This makes the quantity of vapor of the tested liquid in said tip () very small and constant and thus the accurate quantity of tested liquid can be pipetted.