|
US2020254313A1
|
|
Portable tennis ball testing device
|
|
US2019086309A1
|
|
Helmet testing equipment and methodology
|
|
US2019388766A1
|
|
Device and method to measure the effectiveness of protective sports equipment
|
|
US2018249778A1
|
|
Energy dissipating helmet
|
|
US2017239535A1
|
|
Golf putter head assembly and method of use
|
|
US2017361179A1
|
|
Adjustable golf putter head having teeth
|
|
US2016296813A1
|
|
Bat break-in testing method and associated apparatus
|
|
US2016279502A1
|
|
Device and method to measure the effectiveness of protective sports equipment
|
|
US2014155191A1
|
|
Angled golf putter head having teeth
|
|
CA2825530A1
|
|
Tennis racket and method
|
|
US2010326201A1
|
|
Compression measurement device
|
|
KR20110040833A
|
|
Putter head with maximal moment of inertia
|
|
US2008194353A1
|
|
Angled golf putter head having teeth
|
|
US2006084531A1
|
|
Tennis racket having a primarily rectangular shape
|
|
US2006287140A1
|
|
Automated line calling system
|
|
US7081056B2
|
|
Sports racket having a uniform string structure
|
