Po-Jen Cheng

Person

Oak Brook, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Game racquet with separate head and handle portions for reducing vi...
- Patent number 7,297,080
- Issue date Nov 20, 2007
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Bumper guard for a sports racquet
- Patent number 6,964,624
- Issue date Nov 15, 2005
- Wilson Sporting Goods Co.
- Walter W. C. Shen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Racquet with channeled handle for receiving racquet string
- Patent number 6,935,975
- Issue date Aug 30, 2005
- Wilson Sporting Goods Co.
- Chin-Chi Chang
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Game racquet with separate head and handle portions for reducing vi...
- Patent number 6,840,874
- Issue date Jan 11, 2005
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Racquet with elongated peripheral main string segments and enlarged...
- Patent number 6,811,502
- Issue date Nov 2, 2004
- Wilson Sporting Goods Co.
- Richard Janes
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Handle for a sports racquet
- Patent number 6,685,583
- Issue date Feb 3, 2004
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Game racquet with separate head and handle portions for reducing vi...
- Patent number 6,663,516
- Issue date Dec 16, 2003
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Game racquet with separate head and handle portions
- Patent number 6,537,165
- Issue date Mar 25, 2003
- Wilson Sporting Goods Co.
- Martin Mockenhaupt
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Two-piece grommet assembly for a sports racquet
- Patent number 6,527,656
- Issue date Mar 4, 2003
- Wilson Sporting Goods Co.
- Po-Jen Cheng
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Central portion of a game racquet with separate head and handle por...
- Patent number D469487
- Issue date Jan 28, 2003
- Wilson Sporting Goods Co.
- William D. Severa
- D21 - Games, toys, and sports goods
Information Patent Grant
Middle region of a game racquet with separate head and handle portions
- Patent number D469488
- Issue date Jan 28, 2003
- Wilson Sporting Goods Co.
- William D. Severa
- D21 - Games, toys, and sports goods
Information Patent Grant
Game racquet with separate head and handle portions for reducing vi...
- Patent number 6,500,080
- Issue date Dec 31, 2002
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Racket having bearings in frame
- Patent number D458324
- Issue date Jun 4, 2002
- Wilson Sporting Goods Co.
- Walter W. C. Shen
- D21 - Games, toys, and sports goods
Information Patent Grant
Tennis racquet
- Patent number 6,383,099
- Issue date May 7, 2002
- Wilson Sporting Goods Co.
- Willie McMillan
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Game racket with elongated slot in yoke portion
- Patent number 6,319,158
- Issue date Nov 20, 2001
- Wilson Sporting Goods Co.
- Po-Jen Cheng
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Tennis racket
- Patent number 5,368,295
- Issue date Nov 29, 1994
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Game racquet with separate head and handle portions for reducing vi...
- Publication number 20050181896
- Publication date Aug 18, 2005
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Bumper guard for a sports racquet
- Publication number 20050159253
- Publication date Jul 21, 2005
- Walter W. C. Shen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Racquet with channeled handle for receiving racquet string
- Publication number 20040204270
- Publication date Oct 14, 2004
- Wilson Sporting Goods Co.
- Chin-Chi Chang
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Game racquet with separate head and handle portions for reducing vi...
- Publication number 20040043845
- Publication date Mar 4, 2004
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
String package for a game racquet and method of stringing a racquet
- Publication number 20040005944
- Publication date Jan 8, 2004
- Wilson Sporting Goods, Inc.
- Po-Jen Cheng
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Handle for a sports racquet
- Publication number 20030100389
- Publication date May 29, 2003
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Game racquet with separate head and handle portions for reducing vi...
- Publication number 20030036448
- Publication date Feb 20, 2003
- Wilson Sporting Goods Co.
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Game racquet with separate head and handle portions for reducing vi...
- Publication number 20020165050
- Publication date Nov 7, 2002
- William D. Severa
- A63 - SPORTS GAMES AMUSEMENTS

Po-Jen Cheng

Person

Patents Grantslast 30 patents

Game racquet with separate head and handle portions for reducing vi...

Bumper guard for a sports racquet

Racquet with channeled handle for receiving racquet string

Game racquet with separate head and handle portions for reducing vi...

Racquet with elongated peripheral main string segments and enlarged...

Handle for a sports racquet

Game racquet with separate head and handle portions for reducing vi...

Game racquet with separate head and handle portions

Two-piece grommet assembly for a sports racquet

Central portion of a game racquet with separate head and handle por...

Middle region of a game racquet with separate head and handle portions

Game racquet with separate head and handle portions for reducing vi...

Racket having bearings in frame

Tennis racquet

Game racket with elongated slot in yoke portion

Tennis racket

Patents Applicationslast 30 patents

Game racquet with separate head and handle portions for reducing vi...

Bumper guard for a sports racquet

Racquet with channeled handle for receiving racquet string

Game racquet with separate head and handle portions for reducing vi...

String package for a game racquet and method of stringing a racquet

Handle for a sports racquet

Game racquet with separate head and handle portions for reducing vi...

Game racquet with separate head and handle portions for reducing vi...