Inventor · disambiguated record
Grant M. Martens
Also filed as: MARTENS GRANT · MARTENS GRANT M
47 granted patents·33 pending applications·452 citations·filing 2014–2025
98Inventor score
Files withACUSHNET CO80
Top patents by PatentIndex Score
80 records- 0198US11351427B1Hollow co-molded iron with inner lightweight portionACUSHNET CO·Filed 2021·Granted Jun 7, 2022·5 cites·20 claims
- 0298US11186016B2Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2020·Granted Nov 30, 2021·10 cites·15 claims
- 0397US12083396B2Hollow co-molded iron with inner lightweight portionACUSHNET CO·Filed 2022·Granted Sep 10, 2024·2 cites·16 claims
- 0497US11202946B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2020·Granted Dec 21, 2021·30 cites·20 claims
- 0597US10065088B2Golf club having double-walled striking faceACUSHNET CO·Filed 2016·Granted Sep 4, 2018·37 cites·20 claims
- 0696US12161920B2Weighted iron setACUSHNET CO·Filed 2022·Granted Dec 10, 2024·4 cites·13 claims
- 0796US11786789B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2021·Granted Oct 17, 2023·7 cites·15 claims
- 0896US11478684B2Weighted iron setACUSHNET CO·Filed 2020·Granted Oct 25, 2022·6 cites·12 claims
- 0996US10029161B2Golf club having removable weightACUSHNET CO·Filed 2016·Granted Jul 24, 2018·40 cites·20 claims
- 1096US9526956B2Golf club headACUSHNET CO·Filed 2015·Granted Dec 27, 2016·53 cites·7 claims
- 1195US11826620B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2021·Granted Nov 28, 2023·6 cites·9 claims
- 1295US10821338B2Striking face deflection structures in a golf clubACUSHNET CO·Filed 2019·Granted Nov 3, 2020·29 cites·20 claims
- 1394US12220623B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2023·Granted Feb 11, 2025·3 cites·15 claims
- 1494US11801428B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2021·Granted Oct 31, 2023·5 cites·11 claims
- 1594US11077340B2Golf club having a low modulus crownACUSHNET CO·Filed 2020·Granted Aug 3, 2021·5 cites·13 claims
- 1694US10099092B2Golf club with flexureACUSHNET CO·Filed 2016·Granted Oct 16, 2018·20 cites·6 claims
- 1794US9839820B2Golf club head with flexureACUSHNET CO·Filed 2016·Granted Dec 12, 2017·26 cites·20 claims
- 1893US11498246B2Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2021·Granted Nov 15, 2022·3 cites·20 claims
- 1993US11433574B2Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2021·Granted Sep 6, 2022·3 cites·20 claims
- 2093US10463933B2Weighted iron setACUSHNET CO·Filed 2018·Granted Nov 5, 2019·13 cites·15 claims
- 2193US10384105B2Golf club with interchangeable soleACUSHNET CO·Filed 2017·Granted Aug 20, 2019·18 cites·22 claims
- 2292US12226679B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2022·Granted Feb 18, 2025·2 cites·16 claims
- 2392US12036448B2Iron with sole slotACUSHNET CO·Filed 2022·Granted Jul 16, 2024·3 cites·11 claims
- 2492US10625124B2Golf club with flexureACUSHNET CO·Filed 2018·Granted Apr 21, 2020·14 cites·15 claims
- 2592US10583334B2Golf club having a low modulus crownACUSHNET CO·Filed 2018·Granted Mar 10, 2020·12 cites·20 claims
- 2691US10843046B2Golf club with flexureACUSHNET CO·Filed 2019·Granted Nov 24, 2020·14 cites·18 claims
- 2790US10881924B2Weighted iron setACUSHNET CO·Filed 2019·Granted Jan 5, 2021·8 cites·11 claims
- 2890US10137342B2Golf club having removeable weightACUSHNET CO·Filed 2016·Granted Nov 27, 2018·14 cites·16 claims
- 2990US9421433B2Golf club head with flexureACUSHNET CO·Filed 2015·Granted Aug 23, 2016·16 cites·17 claims
- 3089US10343032B2Golf club with flexureACUSHNET CO·Filed 2017·Granted Jul 9, 2019·12 cites·19 claims
- 3188US11938387B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2021·Granted Mar 26, 2024·2 cites·12 claims
- 3288US10357697B2Weighted iron setACUSHNET CO·Filed 2017·Granted Jul 23, 2019·11 cites·15 claims
- 3386US2024408458A1Hollow co-molded iron with inner lightweight portionACUSHNET CO·Filed 2024·Application pending·0 cites
- 3483US10307649B1Multi-material iron golf club headACUSHNET CO·Filed 2017·Granted Jun 4, 2019·7 cites·19 claims
- 3581US11839797B2Multi-material golf club headACUSHNET CO·Filed 2021·Granted Dec 12, 2023·1 cites·10 claims
- 3681US11511464B2Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2021·Granted Nov 29, 2022·1 cites·20 claims
- 3780US12472663B2Golf club head having a multi-material face and method of manufactureACUSHNET CO·Filed 2022·Granted Nov 18, 2025·1 cites·10 claims
- 3880US10507366B2Golf club having double-walled striking faceACUSHNET CO·Filed 2018·Granted Dec 17, 2019·4 cites·20 claims
- 3980US2025073544A1Weighted iron setACUSHNET CO·Filed 2024·Application pending·0 cites
- 4079US2024416191A1Golf club having a low modulus crownACUSHNET CO·Filed 2024·Application pending·0 cites
- 4175US11794080B2Golf club having a damping element for ball speed controlACUSHNET CO·Filed 2020·Granted Oct 24, 2023·1 cites·12 claims
- 4275US10940371B2Multi-material golf club headACUSHNET CO·Filed 2019·Granted Mar 9, 2021·2 cites·20 claims
- 4374US12409585B2Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2022·Granted Sep 9, 2025·0 cites·8 claims
- 4474US12102890B2Golf club having a low modulus crownACUSHNET CO·Filed 2022·Granted Oct 1, 2024·0 cites·20 claims
- 4573US2023055816A1Golf club head having multi-material face and method of manufactureACUSHNET CO·Filed 2022·Application pending·0 cites
- 4672US10806980B2Golf club with interchangeable soleACUSHNET CO·Filed 2019·Granted Oct 20, 2020·2 cites·22 claims
- 4772US2024350870A1Iron with Sole SlotACUSHNET CO·Filed 2024·Application pending·0 cites
- 4871US2025177824A1Synergistic golf club and golf ball combinationACUSHNET CO·Filed 2024·Application pending·0 cites
- 4970US2024091602A1Multi-material golf club headACUSHNET CO·Filed 2023·Application pending·0 cites
- 5069US11497971B2Golf club having a low modulus crownACUSHNET CO·Filed 2021·Granted Nov 15, 2022·0 cites·20 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →