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. 23, 2007
Filed:
Dec. 03, 2003
Applicants:
Jutta Eigemann, Dortmund, DE;
Johannes Geser, Ingelheim, DE;
Inventors:
Jutta Eigemann, Dortmund, DE;
Johannes Geser, Ingelheim, DE;
Assignee:
Boehringer Ingelheim International GmbH, Ingelheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 15/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a piston pumping system for substantially gas-free measurement and/or pumping of predetermined quantities of liquids, preferably pharmaceutical liquids containing oxidation-prone ingredients. Preferably, the system is used as a micropump or as a component thereof in medical devices such as transdermal therapeutic systems, for example.