John Charles Marcin

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Huntington Beach, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Attachment for a sports training device
- Patent number 9,694,266
- Issue date Jul 4, 2017
- John Charles Marcin
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Target for a Sport Training Device
- Publication number 20200360781
- Publication date Nov 19, 2020
- John Charles Marcin
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Attachment for a Sport Training Device
- Publication number 20170252619
- Publication date Sep 7, 2017
- John Charles Marcin
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Attachment for a Sports Training Device
- Publication number 20150367212
- Publication date Dec 24, 2015
- John Charles Marcin
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Sports Training Device
- Publication number 20150273296
- Publication date Oct 1, 2015
- John Charles Marcin
- A63 - SPORTS GAMES AMUSEMENTS