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:
May. 12, 2009
Filed:
May. 30, 2006
Anthony R. Dopf, Calgary, CA;
Trang Le, Calgary, CA;
Derek Logan, Calgary, CA;
Timothy Neff, Calgary, CA;
Wendall Siemens, Calgary, CA;
Dave Switzer, Calgary, CA;
Anthony R. Dopf, Calgary, CA;
Trang Le, Calgary, CA;
Derek Logan, Calgary, CA;
Timothy Neff, Calgary, CA;
Wendall Siemens, Calgary, CA;
Dave Switzer, Calgary, CA;
Extreme Engineering Ltd., Calgary, Alberta, CA;
Abstract
A shaft protection washer to protect a rotating shaft in a 'measurement while drilling' (MWD) tool. Use of the shaft protection washer renders the rotating shaft less susceptible to erosion from the drilling fluid flowing between the rotating component and the stationary component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile