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. 28, 2007
Filed:
Apr. 29, 2004
Andrew Simon Bell, Sandwich, GB;
David Graham Brown, Sandwich, GB;
David Nathan Abraham Fox, Sandwich, GB;
Ian Roger Marsh, Sandwich, GB;
Andrew Ian Morrell, Sandwich, GB;
Michael John Palmer, Sandwich, GB;
Carol Ann Winslow, Sandwich, GB;
Andrew Simon Bell, Sandwich, GB;
David Graham Brown, Sandwich, GB;
David Nathan Abraham Fox, Sandwich, GB;
Ian Roger Marsh, Sandwich, GB;
Andrew Ian Morrell, Sandwich, GB;
Michael John Palmer, Sandwich, GB;
Carol Ann Winslow, Sandwich, GB;
Pfizer Inc., New York, NY (US);
Abstract
The present invention comprises a class of 5,7-diaminopyrazolo[4,3-d]pyrimidine compounds. These compounds are useful as phosphodiesterase type 5 inhibitors. The present invention further comprises compositions containing the compounds use of the compounds and compositions to treat hypertension and other conditions, processes for the preparation of the compounds, and intermediates used in the preparation of the compounds.