Robert Krzewicki

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Sacramento, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Multifunctional electronic dart board with digital target display r...
- Patent number 9,587,917
- Issue date Mar 7, 2017
- Robert Krzewicki
- F41 - WEAPONS
Information Patent Grant
Multifunctional electronic dart board with digital target display r...
- Patent number 9,329,002
- Issue date May 3, 2016
- Robert Krzewicki
- F41 - WEAPONS
Information Patent Grant
Multifunctional electronic dart board with digital target display r...
- Patent number 8,740,222
- Issue date Jun 3, 2014
- Robert Krzewicki
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
DART BOARD WITH DIGITAL TARGET DISPLAY RING (DTDR)
- Publication number 20090218769
- Publication date Sep 3, 2009
- Robert Krzewicki
- A63 - SPORTS GAMES AMUSEMENTS