# US 2026/0249141 A1 · Golf club head and method for making the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0249141 A1 - Document ID: US20260249141A1 - Status: Published application - Kind: A1 - Application number: 19/181,442 - Filed: 2025-04-17 - Published: 2026-08-27 - Earliest claimed: 2025-02-25 - Assignees: Advanced International Multitech Co., Ltd. - Applicants: Advanced International Multitech Co., Ltd. - Inventors: Ming-Fu SU; Chun-Lu HUNG; Yen-Zhou XIE; Ta-I TSENG - Web page: https://patentgrep.com/patent/US20260249141A1 ## CPC - A63B 53/04: Heads - A63B 60/02: Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) - A63B 53/0433: {with special sole configurations} - A63B 53/0466: {wood-type} - A63B 53/047: {iron-type} - A63B 53/0487: {for putters (A63B53/065 takes precedence)} - A63B 60/04: Movable ballast means {(A63B15/005 takes precedence)} - A63B 60/50: with through-holes (A63B60/18 takes precedence; for stringing purposes A63B49/00) - B29C 70/682: {Preformed parts characterised by their structure, e.g. form} - B29C 70/745: {Filling cavities in the preformed part (for joining B29C70/84)} - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B 2209/00: Characteristics of used materials - B29K 2505/00: Use of metals, their alloys or their compounds, as filler - B29L 2031/5227: {Clubs} - B33Y 80/00: Products made by additive manufacturing - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ## Abstract A golf club head includes a club head main body and at least one counterweight block. The club head main body has at least one internal cavity that is in spatial communication with an external space through at least one opening. The at least one counterweight block is embedded in the at least one internal cavity. The at least one counterweight block has a cross-section dimension that is greater than a cross-section dimension of the at least one opening so that the at least one counterweight block is confined in the at least one internal cavity. The at least one counterweight block includes a plurality of metallic particles which are bonded to one another through a cured binding material. A method for making the golf club head is also provided. ## Claims ### Claim 1 A golf club head, comprising: a club head main body which has at least one internal cavity in spatial communication with an external space through at least one opening of said club head main body ; and at least one counterweight block which is embedded in said at least one internal cavity, said at least one counterweight block having a cross-section dimension that is greater than a cross-section dimension of said at least one opening so that said at least one counterweight block is confined in said at least one internal cavity, said at least one counterweight block including a plurality of metallic particles which are bonded to one another through a cured binding material. ### Claim 2 (depends on 1) The golf club head as claimed in claim 1, wherein said cured binding material in said at least one counterweight block includes resin. ### Claim 3 (depends on 1) The golf club head as claimed in claim 1, wherein said at least one counterweight block is exposed from said club head main body through said at least one opening. ### Claim 4 (depends on 1) The golf club head as claimed in claim 1, wherein said club head main body is formed in one-piece. ### Claim 5 A method for making a golf club head, comprising the steps of: A) forming a club head main body which has at least one internal cavity in spatial communication with an external space through at least one opening of the club head main body; B) simultaneously or separately introducing a plurality of metallic particles and a binding material into the at least one internal cavity through the at least one opening; and C) curing the binding material inside the at least one internal cavity to form a cured binding material so that the plurality of metallic particles are bonded to one another through the cured binding material to form at least one counterweight block, the at least one counterweight block having a cross-section dimension that is greater than a cross-section dimension of the at least one opening. ### Claim 6 (depends on 5) The method as claimed in claim 5, wherein, in step B), the plurality of metallic particles and the binding material are simultaneously introduced into the at least one internal cavity by introducing a mixture of the plurality of metallic particles and the binding material into the at least one internal cavity. ### Claim 7 (depends on 5) The method as claimed in claim 5, wherein in step B), the binding material includes resin. ### Claim 8 (depends on 5) The method as claimed in claim 5, wherein in step A), the at least one internal cavity in the club head main body is formed by casting, forging, additive manufacturing or precision machining. ### Claim 9 (depends on 5) The method as claimed in claim 5, wherein in step C), the binding material is cured by heating the at least one internal cavity so that the plurality of metallic particles are bonded to one another by the cured binding material, thereby forming the at least one counterweight block.