US 11,992,736 B2
Grooves of golf club heads and methods to manufacture grooves of golf club heads
Calvin S. Wang, Taichung (TW); Xiaojian Chen, Phoenix, AZ (US); David A. Higdon, Phoenix, AZ (US); Les J. Bryant, Peoria, AZ (US); Martin R. Jertson, Phoenix, AZ (US); Anthony D. Serrano, Phoenix, AZ (US); and John A. Solheim, Phoenix, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Aug. 22, 2022, as Appl. No. 17/821,434.
Application 17/821,434 is a continuation of application No. 17/127,687, filed on Dec. 18, 2020, granted, now 11,420,100.
Application 17/127,687 is a continuation in part of application No. 16/056,391, filed on Aug. 6, 2018, granted, now 11,083,938, issued on Aug. 10, 2021.
Application 16/056,391 is a continuation in part of application No. 15/962,969, filed on Apr. 25, 2018, granted, now 10,583,338, issued on Mar. 10, 2020.
Application 15/962,969 is a continuation of application No. 15/236,112, filed on Aug. 12, 2016, granted, now 9,987,530, issued on Jun. 5, 2018.
Application 15/236,112 is a continuation in part of application No. 14/529,590, filed on Oct. 31, 2014, granted, now 9,849,351, issued on Dec. 26, 2017.
Application 14/529,590 is a continuation in part of application No. 14/196,313, filed on Mar. 4, 2014, granted, now 9,452,326, issued on Sep. 27, 2016.
Application 14/196,313 is a continuation in part of application No. 13/761,778, filed on Feb. 7, 2013, granted, now 8,790,193, issued on Jul. 29, 2014.
Application 13/761,778 is a continuation of application No. 13/628,685, filed on Sep. 27, 2012, granted, now 9,108,088, issued on Aug. 18, 2015.
Application 13/628,685 is a continuation in part of application No. 13/591,620, filed on Aug. 22, 2012, granted, now 8,764,578, issued on Jul. 1, 2014.
Application 13/591,620 is a continuation of application No. 13/237,293, filed on Sep. 20, 2011, granted, now 8,282,505, issued on Oct. 9, 2012.
Application 13/237,293 is a continuation of application No. 12/535,868, filed on Aug. 5, 2009, granted, now 8,066,586, issued on Nov. 29, 2011.
Claims priority of provisional application 62/950,841, filed on Dec. 19, 2019.
Claims priority of provisional application 62/541,445, filed on Aug. 4, 2017.
Claims priority of provisional application 62/277,358, filed on Jan. 11, 2016.
Claims priority of provisional application 62/268,011, filed on Dec. 16, 2015.
Claims priority of provisional application 62/233,099, filed on Sep. 25, 2015.
Claims priority of provisional application 62/205,550, filed on Aug. 14, 2015.
Claims priority of provisional application 61/697,994, filed on Sep. 7, 2012.
Claims priority of provisional application 61/541,981, filed on Sep. 30, 2011.
Claims priority of provisional application 61/087,158, filed on Aug. 7, 2008.
Prior Publication US 2022/0401803 A1, Dec. 22, 2022
Int. Cl. A63B 53/04 (2015.01); A63B 53/06 (2015.01)
CPC A63B 53/0487 (2013.01) [A63B 53/065 (2013.01); A63B 53/0408 (2020.08); A63B 53/0416 (2020.08); A63B 53/0425 (2020.08); A63B 53/0429 (2020.08); A63B 53/0445 (2020.08); A63B 53/0466 (2013.01); A63B 53/047 (2013.01); Y10T 29/49 (2015.01)] 17 Claims
OG exemplary drawing
 
1. A putter type golf club head comprising:
a putter face defined by a toe end, a heel end, a top rail and a sole, the putter type club face comprising a plurality of first curved grooves and a plurality of second curved grooves, each of the first curved grooves and the second curved grooves, and a plurality of land portions between the first curved grooves and the second curved grooves; wherein:
the plurality of first curved grooves are parallel to each other;
the plurality of second curved grooves are parallel to each other;
the plurality of first curved grooves intersect the plurality of second curved grooves at a plurality of points along the plurality of second curved grooves;
a width of at least one groove of the plurality of first curved grooves varies in a direction extending between the heel end and the toe end;
a width of at least one groove of the plurality of second curved grooves varies in a direction extending between the heel end and the toe end;
the land portions form areas on the putter face that contact a golf ball during impact;
the area of the land portions varies in a direction extending between the heel end and the toe end; and
the putter golf type club head has a loft angle less than 7 degrees.