David Llewellyn

Person

Duluth, GA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Golf club head with sole side features
- Patent number 11,794,082
- Issue date Oct 24, 2023
- Mizuno Corporation
- Kei Tsuji
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Wave sole for a golf club head
- Patent number 11,738,242
- Issue date Aug 29, 2023
- Mizuno Corporation
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bat system with performance limiting structure and methods of makin...
- Patent number 11,524,215
- Issue date Dec 13, 2022
- Mizuno Corporation
- Kohei Kikuchi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bat system with performance limiting structure and methods of makin...
- Patent number 10,967,235
- Issue date Apr 6, 2021
- Mizuno Corporation
- Kohei Kikuchi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Wave sole for a golf club head
- Patent number 10,926,141
- Issue date Feb 23, 2021
- Mizuno Corporation
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Vibration damping bat and methods of making the same
- Patent number 10,245,488
- Issue date Apr 2, 2019
- Mizuno Corporation
- Brendan Kays
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Adjustable metal wood golf club head with moveable weight structure
- Patent number 10,159,880
- Issue date Dec 25, 2018
- Mizuno Corporation
- Takayuki Mine
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Multi-track adjustable golf club
- Patent number 9,597,563
- Issue date Mar 21, 2017
- Mizuno USA, Inc.
- Chris Voshall
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Adjustable golf club
- Patent number 9,333,399
- Issue date May 10, 2016
- Mizuno USA, Inc.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron-type golf club head
- Patent number D736872
- Issue date Aug 18, 2015
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D736875
- Issue date Aug 18, 2015
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D720416
- Issue date Dec 30, 2014
- Mizuno USA, Inc.
- Richard Delvac
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D720417
- Issue date Dec 30, 2014
- Mizuno USA, Inc.
- Richard Delvac
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D720026
- Issue date Dec 23, 2014
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D682962
- Issue date May 21, 2013
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D682961
- Issue date May 21, 2013
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Wood-type golf club
- Patent number D669546
- Issue date Oct 23, 2012
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club
- Patent number D664621
- Issue date Jul 31, 2012
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club
- Patent number D659780
- Issue date May 15, 2012
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Hybrid-type golf club head
- Patent number D650876
- Issue date Dec 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D650877
- Issue date Dec 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D650878
- Issue date Dec 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron golf club heads and golf club sets with variable weight distri...
- Patent number 8,021,246
- Issue date Sep 20, 2011
- Mizuno USA, Inc.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Iron-type golf club
- Patent number D645103
- Issue date Sep 13, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Golf club head and golf clubs
- Patent number 8,016,694
- Issue date Sep 13, 2011
- Mizuno USA
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Wood-type golf club head
- Patent number D641817
- Issue date Jul 19, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D641821
- Issue date Jul 19, 2011
- Mizuno USA, Inc.
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron-type golf club head
- Patent number D641444
- Issue date Jul 12, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods
Information Patent Grant
Iron golf club heads and golf club sets with variable weight distri...
- Patent number 7,972,222
- Issue date Jul 5, 2011
- Mizuno USA, Inc.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Wood-type golf club
- Patent number D639363
- Issue date Jun 7, 2011
- Mizuno USA
- David Llewellyn
- D21 - Games, toys, and sports goods

Patents Applicationslast 30 patents

Information Patent Application
GOLF CLUB HEAD WITH SOLE SIDE FEATURES
- Publication number 20240050819
- Publication date Feb 15, 2024
- Mizuno Corporation
- Kei Tsuji
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...
- Publication number 20230113166
- Publication date Apr 13, 2023
- Mizuno Corporation
- Kohei Kikuchi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...
- Publication number 20210220713
- Publication date Jul 22, 2021
- Mizuno Corporation
- Kohei Kikuchi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
WAVE SOLE FOR A GOLF CLUB HEAD
- Publication number 20210170243
- Publication date Jun 10, 2021
- Mizuno Corporation
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...
- Publication number 20200129823
- Publication date Apr 30, 2020
- Mizuno Corporation
- Kohei Kikuchi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
WAVE SOLE FOR A GOLF CLUB HEAD
- Publication number 20200038723
- Publication date Feb 6, 2020
- Mizuno Corporation
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
FORGED SLOTTED IRON GOLF CLUB
- Publication number 20180056151
- Publication date Mar 1, 2018
- Mizuno Corporation
- Kazuhiro Doi
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
FORGED SLOTTED IRON GOLF CLUB
- Publication number 20170036076
- Publication date Feb 9, 2017
- MIZUNO USA, INC.
- Kazuhiro Doi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WAVE SOLE FOR A GOLF CLUB HEAD
- Publication number 20160325155
- Publication date Nov 10, 2016
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
MULTI-TRACK ADJUSTABLE GOLF CLUB
- Publication number 20150297961
- Publication date Oct 22, 2015
- MIZUNO USA, INC.
- Chris Voshall
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
WAVE SOLE FOR A GOLF CLUB HEAD
- Publication number 20150238826
- Publication date Aug 27, 2015
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
ADJUSTABLE GOLF CLUB
- Publication number 20140080617
- Publication date Mar 20, 2014
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB HEAD AND GOLF CLUBS
- Publication number 20110009209
- Publication date Jan 13, 2011
- Mizuno USA
- DAVID LLEWELLYN
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...
- Publication number 20100167834
- Publication date Jul 1, 2010
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...
- Publication number 20100160067
- Publication date Jun 24, 2010
- MIZUNO USA, INC.
- DAVID LLEWELLYN
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
WOOD-TYPE GOLF CLUB HEADS AND METHODS OF ADJUSTING THE SAME
- Publication number 20090048037
- Publication date Feb 19, 2009
- MIZUNO USA, INC.
- David Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB HEAD AND GOLF CLUB
- Publication number 20080194354
- Publication date Aug 14, 2008
- Mizuno USA
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
TRIAL GOLF CLUB FOR MEASURING LOFT ANGLE AND METHODS FOR USING THE...
- Publication number 20080085779
- Publication date Apr 10, 2008
- MIZUNO USA, INC.
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Iron golf club and golf club set with variable weight distribution
- Publication number 20050085312
- Publication date Apr 21, 2005
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Trial golf club, golf club fitting system and methods of using the...
- Publication number 20040023725
- Publication date Feb 5, 2004
- David G. Llewellyn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Game improvement golf club using hollow technology
- Publication number 20040023729
- Publication date Feb 5, 2004
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Utility iron golf club with weighting element
- Publication number 20040023730
- Publication date Feb 5, 2004
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
GOLF CLUB HEAD WITH BOUNCE CHANNEL
- Publication number 20020094882
- Publication date Jul 18, 2002
- Masao Nagai
- A63 - SPORTS GAMES AMUSEMENTS

David Llewellyn

Person

Patents Grantslast 30 patents

Golf club head with sole side features

Wave sole for a golf club head

Bat system with performance limiting structure and methods of makin...

Bat system with performance limiting structure and methods of makin...

Wave sole for a golf club head

Vibration damping bat and methods of making the same

Adjustable metal wood golf club head with moveable weight structure

Multi-track adjustable golf club

Adjustable golf club

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron-type golf club head

Wood-type golf club

Iron-type golf club

Iron-type golf club

Hybrid-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron golf club heads and golf club sets with variable weight distri...

Iron-type golf club

Golf club head and golf clubs

Wood-type golf club head

Iron-type golf club head

Iron-type golf club head

Iron golf club heads and golf club sets with variable weight distri...

Wood-type golf club

Patents Applicationslast 30 patents

GOLF CLUB HEAD WITH SOLE SIDE FEATURES

BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...

BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...

WAVE SOLE FOR A GOLF CLUB HEAD

BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKIN...

WAVE SOLE FOR A GOLF CLUB HEAD

FORGED SLOTTED IRON GOLF CLUB

FORGED SLOTTED IRON GOLF CLUB

WAVE SOLE FOR A GOLF CLUB HEAD

MULTI-TRACK ADJUSTABLE GOLF CLUB

WAVE SOLE FOR A GOLF CLUB HEAD

ADJUSTABLE GOLF CLUB

GOLF CLUB HEAD AND GOLF CLUBS

IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...

IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRI...

WOOD-TYPE GOLF CLUB HEADS AND METHODS OF ADJUSTING THE SAME

GOLF CLUB HEAD AND GOLF CLUB

TRIAL GOLF CLUB FOR MEASURING LOFT ANGLE AND METHODS FOR USING THE...

Iron golf club and golf club set with variable weight distribution

Trial golf club, golf club fitting system and methods of using the...

Game improvement golf club using hollow technology

Utility iron golf club with weighting element

GOLF CLUB HEAD WITH BOUNCE CHANNEL