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.

Date of Patent:
Jun. 05, 2007

Filed:

May. 04, 2004
Applicants:

Yang Hwan Park, Seoul, KR;

Kyung Jung Kang, Kyoenggi-do, KR;

Gwang Hee Lee, Kyoenggi-do, KR;

Jung Gyu Moon, Tigard, OR (US);

Chun Bae Ryu, Seoul, KR;

Inventors:

Yang Hwan Park, Seoul, KR;

Kyung Jung Kang, Kyoenggi-do, KR;

Gwang Hee Lee, Kyoenggi-do, KR;

Jung Gyu Moon, Tigard, OR (US);

Chun Bae Ryu, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a thermochromic golf ball with a one- or multi-piece structure, which comprises a thermochromic compound. The thermochromic golf ball reversibly changes between two different color states with temperature. The thermochromic golf ball may be white when it is warmed to higher than a thermochromic temperature point, but shows a characteristic color when it is cooled to lower than the point. In a two-piece or three-piece ball, the thermochromic compound is present in either the outer cover or a transparent coat applied to the cover. The thermochromic pigment changes color when a critical point temperature is reached, thereby alerting the golfer that the current temperature of the golf ball may have power performance characteristics.


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