Patents by Inventor Grant M. Martens
Grant M. Martens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230101631Abstract: A small-format metal wood golf club head may include a first portion including at least a striking face formed of an alloy of titanium and a second portion including at least a portion of a sole formed of an alloy of steel. The golf club head exhibits beneficial characteristics of both titanium and steel in that the titanium striking face is lighter than a steel striking face having the same coefficient of restitution (COR) and the steel sole allows for concentration of mass in a beneficial location within the golf club head, while overcoming traditional difficulties in bonding titanium and steel.Type: ApplicationFiled: September 24, 2021Publication date: March 30, 2023Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh, Scott A. Knutson, Charles E. Golden
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Publication number: 20230097561Abstract: A golf club head including a striking face, a periphery portion surrounding and extending rearwards from the striking face, a damping element including a front surface and a rear surface, the rear surface of the damping element opposite the front surface of the damping element, wherein the striking face comprises a first portion having a substantially constant thickness, wherein the front surface of the damping element comprises a geometric center, wherein the golf club head includes additional damping structures and materials to achieve desired acoustic characteristics.Type: ApplicationFiled: December 7, 2022Publication date: March 30, 2023Applicant: Acushnet CompanyInventors: Grant M. Martens, Doug Takehara
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Publication number: 20230055816Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: ApplicationFiled: November 7, 2022Publication date: February 23, 2023Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Publication number: 20230051234Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: ApplicationFiled: November 2, 2022Publication date: February 16, 2023Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Publication number: 20230021981Abstract: The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and a tungsten weight member coupled to the toe and a tungsten heel weight member coupled in a hosel cavity.Type: ApplicationFiled: September 23, 2022Publication date: January 26, 2023Applicant: Acushnet CompanyInventors: Jason A. Mata, Marni D. Ines, Jonathan Hebreo, Joshua G. Breier, Michael E. Franz, Joshua C. Stokes, Grant M. Martens
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Publication number: 20230014218Abstract: A golf club head including a striking face, a periphery portion surrounding and extending rearwards from the striking face, a damping element including a front surface and a rear surface, the rear surface of the damping element opposite the front surface of the damping element, wherein the striking face comprises a first portion having a substantially constant thickness, wherein the front surface of the damping element comprises a geometric center, wherein the striking face comprises a second portion, the second portion of the striking face located heelward of the center face plane, the second portion of the striking face having a thickness which tapers from a maximum thickness at a thick end of the second portion to a minimum thickness at a thin end of the second portion, wherein the thick end is located toeward of the thin end.Type: ApplicationFiled: September 15, 2022Publication date: January 19, 2023Applicant: Acushnet CompanyInventors: Grant M. Martens, Gentry Ferguson, Kyle A. Carr, Jonathan Hebreo, Jason A. Mata, Charles E. Golden, John Morin
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Publication number: 20220379175Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components. The insert may be bonded to the frontal pocket using an adhesive impregnated within a glass fiber weave.Type: ApplicationFiled: August 9, 2022Publication date: December 1, 2022Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh, Ryuichi Sugimae
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Patent number: 11511464Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: GrantFiled: February 26, 2021Date of Patent: November 29, 2022Assignee: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Patent number: 11498246Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: GrantFiled: February 26, 2021Date of Patent: November 15, 2022Assignee: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Patent number: 11497971Abstract: A golf club head with a crown comprising an inner crown portion and an outer crown portion. The inner crown portion may be made of a low density or low elastic modulus material. The outer portion of the crown defines an opening to the cavity, a riser extending into the cavity, and a ledge extending from the edge of the riser. The ledge may define a first channel and a second channel that extend around the ledge. The first channel is filled with adhesive to secure the inner portion of the crown to the ledge. The inner portion of the crown is attached to the ledge such that the opening is covered by the inner portion of the crown. The golf club head may also have a sole comprising an inner sole portion and an outer sole portion.Type: GrantFiled: June 30, 2021Date of Patent: November 15, 2022Assignee: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh, Nick Frame, Richard L. Cleghorn, Takeshi Casey Funaki, Doug M. Takehara
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Patent number: 11478684Abstract: The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and a tungsten weight member coupled to the toe and a tungsten heel weight member coupled in a hosel cavity.Type: GrantFiled: December 10, 2020Date of Patent: October 25, 2022Assignee: Acushnet CompanyInventors: Jason A. Mata, Marni D. Ines, Jonathan Hebreo, Joshua G. Breier, Michael E. Franz, Joshua C. Stokes, Grant M. Martens
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Publication number: 20220288466Abstract: A multi-material iron type golf club head is disclosed. More specifically, the golf club head may have a first metallic portion, a second metallic portion, and a lightweight portion. The first metallic portion and the second metallic portion collectively define all external surfaces of the golf club head. The lightweight portion may be located within an interior cavity of the golf club head and may contact and support the striking face, the topline portion, the rear wall portion, and the sole portion of the golf club head.Type: ApplicationFiled: May 5, 2022Publication date: September 15, 2022Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Patent number: 11433574Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: GrantFiled: February 26, 2021Date of Patent: September 6, 2022Assignee: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Publication number: 20220212376Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a multi-material striking face portion that is made out of a backing layer having a frontal pocket, made out of titanium, and an insert, made out of a composite material, adapted to be inserted into the frontal pocket. The frontal pocket and the insert could have complementary dovetail shaped undercut features to create a mechanical bond between these two components.Type: ApplicationFiled: February 3, 2022Publication date: July 7, 2022Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Patent number: 11351427Abstract: A multi-material iron type golf club head is disclosed. More specifically, the golf club head may have a first metallic portion, a second metallic portion, and a lightweight portion. The first metallic portion and the second metallic portion collectively define all external surfaces of the golf club head. The lightweight portion may be located within an interior cavity of the golf club head and may contact and support the striking face, the topline portion, the rear wall portion, and the sole portion of the golf club head.Type: GrantFiled: March 12, 2021Date of Patent: June 7, 2022Assignee: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh
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Publication number: 20220152465Abstract: A golf club head including a striking face, a periphery portion surrounding and extending rearwards from the striking face, a damping element including a front surface and a rear surface, the rear surface of the damping element opposite the front surface of the damping element, wherein the striking face comprises a first portion having a substantially constant thickness, wherein the front surface of the damping element comprises a geometric center, wherein the striking face comprises a second portion, the second portion of the striking face located heelward of the center face plane, the second portion of the striking face having a thickness which tapers from a maximum thickness at a thick end of the second portion to a minimum thickness at a thin end of the second portion, wherein the thick end is located toeward of the thin end.Type: ApplicationFiled: December 6, 2021Publication date: May 19, 2022Applicant: Acushnet CompanyInventors: Grant M. Martens, Gentry Ferguson, Kyle A. Carr, Jonathan Hebreo, Jason A. Mata, Charles E. Golden, John Morin
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Publication number: 20220072395Abstract: A golf club head including a striking face, a periphery portion, and a support arm spaced from the rear surface of the striking face, a first damping element residing between the support arm and the rear surface of the striking face, wherein the first damping element comprises a front surface in contact with the rear surface of the striking face and a rear surface in contact with the support arm, wherein the periphery portion comprises a sole, and a second damping element located between the first damping element and the sole, a front portion of the second damping element in contact with the rear surface of the striking face, a rear surface of the second damping element in contact with the support arm.Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Applicant: Acushnet CompanyInventors: Charles E. Golden, Marni D. Ines, Christopher Savage, Grant M. Martens, Gentry Ferguson, John Morin, Jason A. Mata, Oswaldo Gonzalez, Jonathan Hebreo, Nick Frame
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Publication number: 20220047925Abstract: An iron golf club head achieving improved performance via a specific Effective Stiffness Area ratio between the boundary of the iron golf club head and the face of the iron golf club head is disclosed. More specifically, the present invention discloses a golf club head wherein an iron golf club head having a variable face profile into specific iron golf club head chassis resulting in an Effective Stiffness Area Ratio of between about 4.5 to 5.5 and a Coefficient of Restitution value as a function of the above Effective Stiffness Area Ratio.Type: ApplicationFiled: June 2, 2021Publication date: February 17, 2022Applicant: Acushnet CompanyInventors: Charles E. Golden, Grant M. Martens, Gentry Ferguson, Ryan J. A. Ritchie, Marni D. Ines, Richard L. Cleghorn, Gery M. Zimmerman
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Publication number: 20210394028Abstract: A golf club head with a crown comprising an inner crown portion and an outer crown portion. The inner crown portion may be made of a low density or low elastic modulus material. The outer portion of the crown defines an opening to the cavity, a riser extending into the cavity, and a ledge extending from the edge of the riser. The ledge may define a first channel and a second channel that extend around the ledge. The first channel is filled with adhesive to secure the inner portion of the crown to the ledge. The inner portion of the crown is attached to the ledge such that the opening is covered by the inner portion of the crown. The golf club head may also have a sole comprising an inner sole portion and an outer sole portion.Type: ApplicationFiled: June 30, 2021Publication date: December 23, 2021Applicant: Acushnet CompanyInventors: Grant M. Martens, Uday V. Deshmukh, Nick Frame, Richard L. Cleghorn, Takeshi Casey Funaki, Doug M. Takehara
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Patent number: 11202946Abstract: A golf club head including a striking face, a periphery portion, and a support arm spaced from the rear surface of the striking face, a first damping element residing between the support arm and the rear surface of the striking face, wherein the first damping element comprises a front surface in contact with the rear surface of the striking face and a rear surface in contact with the support arm, wherein the periphery portion comprises a sole, and a second damping element located between the first damping element and the sole, a front portion of the second damping element in contact with the rear surface of the striking face, a rear surface of the second damping element in contact with the support arm.Type: GrantFiled: October 30, 2020Date of Patent: December 21, 2021Assignee: Acushnet CompanyInventors: Charles E. Golden, Marni D. Ines, Christopher Savage, Grant M. Martens, Gentry Ferguson, John Morin, Jason A. Mata, Oswaldo Gonzalez, Jonathan Hebreo, Nick Frame