Wilhelm Graffenberger

Follow

Person

Hamburg, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Circuit arrangement having at least two signal paths
- Patent number 5,963,081
- Issue date Oct 5, 1999
- U.S. Philips Corporation
- Udo Schillhof
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
I.sup.2 L gate circuit arrangement having a switchable current source
- Patent number 4,608,502
- Issue date Aug 26, 1986
- U.S. Philips Corporation
- Eise C. Dijkmans
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit arrangement with electronically controllable transfer chara...
- Patent number 4,439,739
- Issue date Mar 27, 1984
- U.S. Philips Corporation
- Ernst A. Kilian
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuit arrangement for transmitting two signals over one line in o...
- Patent number 4,419,752
- Issue date Dec 6, 1983
- U.S. Philips Corporation
- Paul Sonnenberger
- H04 - ELECTRIC COMMUNICATION TECHNIQUE