Rypkema; Jouke N.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Rypkema; Jouke N..The latest application filed is for "restrictive access control system".
- Rypkema; Jouke N. - Lombard IL
| Patent | Date |
|---|---|
| Restrictive access control system Grant 4,768,229 - Benjamin , et al. August 30, 1 | 1988-08-30 |
| Intercarrier signal detection circuit for a television receiver Grant 4,490,743 - Mycynek , et al. December 25, 1 | 1984-12-25 |
| Remote muting for CATV/STV converters Grant 4,395,734 - Rypkema July 26, 1 | 1983-07-26 |
| Surface wave AFC discriminator with two zero crossings Grant 4,118,740 - Rypkema October 3, 1 | 1978-10-03 |
| Signal Processing System For Television Receiver Having Acoustic Surface Wave Devices For Improved Tuning And Video Demodulation Grant 3,787,612 - DeVries , et al. January 22, 1 | 1974-01-22 |
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