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. 24, 2011
Filed:
Jan. 27, 2011
Applicants:
Steven M. Ehlers, Poway, CA (US);
John B. Kosmatka, Encinitas, CA (US);
Anthony V. Nigro, Oceanside, CA (US);
Matthew J. Erickson, San Diego, CA (US);
Inventors:
Steven M. Ehlers, Poway, CA (US);
John B. Kosmatka, Encinitas, CA (US);
Anthony V. Nigro, Oceanside, CA (US);
Matthew J. Erickson, San Diego, CA (US);
Assignee:
Callaway Golf Company, Carlsbad, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A golf club head having a multiple material face is disclosed herein. The golf club head has a coefficient of restitution value greater than 0.83 and a characteristic time value of less than 257 milliseconds. The golf club head is preferably composed of a titanium alloy with a polymer layer disposed over a titanium alloy front wall. A preferred polymer is a polyurethane polymer.