Mark Wojtkiewicz

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Lancaster, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Jumping device with convertible stabilizing base
- Patent number 6,964,634
- Issue date Nov 15, 2005
- Mattel, Inc.
- Mark Wojtkiewicz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Ball launching apparatus
- Patent number 6,877,501
- Issue date Apr 12, 2005
- Mattel, Inc.
- Mark Wojtkiewicz
- F41 - WEAPONS
Information Patent Grant
Suspension swing with a recline mechanism and a method of using the...
- Patent number 6,857,965
- Issue date Feb 22, 2005
- Mattel, Inc.
- Peter Pook
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Adjustable hoop and method of using the same
- Patent number 6,648,717
- Issue date Nov 18, 2003
- Mattel, Inc.
- Daniel Dignitti
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Ball launching apparatus
- Patent number 6,637,422
- Issue date Oct 28, 2003
- Mattel, Inc.
- Mark Wojtkiewicz
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
Activity System and Method of Using the Same
- Publication number 20100144236
- Publication date Jun 10, 2010
- Ronald Asbach
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Expandable Play Set
- Publication number 20080096463
- Publication date Apr 24, 2008
- Mattel, Inc.
- Mark A. Wojtkiewicz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Suspension swing with a recline mechanism and a method of using the...
- Publication number 20040198510
- Publication date Oct 7, 2004
- Peter Pook
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Ball launching apparatus
- Publication number 20040084041
- Publication date May 6, 2004
- Mark Wojtkiewicz
- F41 - WEAPONS
Information Patent Application
Ball launching apparatus
- Publication number 20030116151
- Publication date Jun 26, 2003
- Mark Wojtkiewicz
- F41 - WEAPONS
Information Patent Application
Jumping device with convertible stabilizing base
- Publication number 20030073547
- Publication date Apr 17, 2003
- Mark Wojtkiewicz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Sports training device
- Publication number 20030069093
- Publication date Apr 10, 2003
- Mark Wojtkiewicz
- A63 - SPORTS GAMES AMUSEMENTS