Nelson Patrick Downs

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Alexandria, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Mathematics game
- Patent number 8,545,227
- Issue date Oct 1, 2013
- Nelson Patrick Downs
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Polygon identification board game
- Patent number 7,857,313
- Issue date Dec 28, 2010
- Nelson Patrick Downs
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
MATHEMATICS GAME
- Publication number 20100173270
- Publication date Jul 8, 2010
- Nelson Patrick Downs
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
POLYGON IDENTIFICATION BOARD GAME
- Publication number 20090184469
- Publication date Jul 23, 2009
- Nelson Patrick Downs
- A63 - SPORTS GAMES AMUSEMENTS