ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSK..HRIS..MTNORSMESM..................J0009013-ENDS014778599EUROPEAN PATENT APPLICATIONA320261007EP26173786.02023030220260421enenen20221765455520220311US202263269232 P20220311US202263363780 P20220428US202263364949 P20220518US202263373831 P20220829US202263378811 P20221007US2026100720264120260722202630A63B 53/04 20150101AFI20260828BHEP A63B 60/02 20150101ALI20260828BHEP A63B 53/0408 20200801 FI20231012BHEP A63B 53/0458 20200801 LI20231012BHEP A63B 53/047 20130101 LI20231012BHEP A63B 60/02 20151001 LI20231012BHEP deMEHRSTUFIGES SCHMIEDEVERFAHRENenMULTI-STAGE FORGING PROCESSfrPROCÉDÉ DE FORGEAGE EN PLUSIEURS ÉTAPES1623767574.944898752023030226184864.2480316320260612Karsten Manufacturing Corporation101995346P608592EPPC012201 W. Desert Cove Ave.Phoenix, AZ 85029USHUANG, YujenPhoenix, Arizona, 85029USHENRIKSON, Erik, M.Phoenix, Arizona, 85029USSCHIER, Matthew, T.Phoenix, Arizona, 85029USSIMONE, Matthew, W.Phoenix, Arizona, 85029USTombling, Adrian George100044064Withers & Rogers LLP 2 London BridgeLondon SE1 9RAGBALATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMEMKMTNLNOPLPTRORSSESISKSMTR20261007202641

An iron-type golf club head with a cavity formed via a multi-stage forging process. The forged iron-type golf club head is formed from a single billet of material. An intermediate step of the multi-stage forging process creates a cavity in the iron-type golf club head which can receive an insert. The resultant iron-type golf club head has a substantially lower center of gravity and higher moment of inertia when compared to a traditionally forged iron-type golf club head lacking a cavity. Additionally, the resultant iron-type golf club head has a more solid feel than a traditionally cast iron-type golf club head as a result of the tighter grain structure the forging process yields.

P608592EPPC01EP26173786.0Karsten Manufacturing CorporationMN20260831A63BUS2020086379A1HUANG YUJEN [TW] ET AL20200319X1-15* paragraph [0017] - paragraph [0057]; figures 1-5 *US10695629B2KARSTEN MFG CORP [US]20200630A1-15* column 16, line 66 - column 17, line 13; figure 9 *Jekabsons, ArmandsMunich20260824US2020086379A120200319EP3852887A120210728EP4205824A120230705ES3037646T320251003JP7326431B220230815JP7809779B220260202JP2022501107A20220106JP2023153932A20231018JP2025016736A20250204KR20210062041A20210528KR20250107946A20250714US2020086379A120200319US2022193753A120220623US2024408668A120241212WO2020061099A120200326US10695629B220200630US2019329107A120191031US2020324183A120201015