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Patent applications and USPTO patent grants for Grzesek; Robert.The latest application filed is for "digital rights management compliance with portable digital media device".
Patent | Date |
---|---|
Toy vehicles and play sets with contactless identification Grant 7,387,559 - Sanchez-Castro , et al. June 17, 2 | 2008-06-17 |
Digital rights management compliance with portable digital media device App 20070130078 - Grzesek; Robert | 2007-06-07 |
Recirculating water fountain App 20060032936 - Proch; Nathan ;   et al. | 2006-02-16 |
Toy vehicles and play sets with contactless identification App 20050148281 - Sanchez-Castro, Jorge ;   et al. | 2005-07-07 |
Adaptive audio communication code App 20040264713 - Grzesek, Robert | 2004-12-30 |
Magnetic assembly toy App 20040198143 - Grzesek, Robert ;   et al. | 2004-10-07 |
Ultrasonic doppler effect speed measurement Grant 6,614,719 - Grzesek September 2, 2 | 2003-09-02 |
Toy device using through-the-body communication Grant 6,422,911 - Grzesek July 23, 2 | 2002-07-23 |
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