Membership
Tour
Register
Log in
DAVID SYSTEMS GMBH
Follow
Organization
MUENCHEN, DE
Organizations
Overview
Industries
People
People
Information
Transactions
Events
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
Information
Patent Grant
Digital timeslot and signaling bus in a digital PBX switch
Patent number
4,975,903
Issue date
Dec 4, 1990
D.A.V.I.D. Systems, Inc.
John F. Wakerly
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for coupling computer work stations
Patent number
4,918,688
Issue date
Apr 17, 1990
Convergent Technologies, Inc.
Jeffrey J. Krause
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interswitch line circuit
Patent number
4,731,827
Issue date
Mar 15, 1988
D.A.V.I.D. Systems, Inc.
Samuel F. Wood
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Three relay C. O. trunk interface
Patent number
4,689,816
Issue date
Aug 25, 1987
D.A.V.I.D. Systems, Inc.
Samuel F. Wood
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed clock synchronization in a digital data switching system
Patent number
4,680,779
Issue date
Jul 14, 1987
D.A.V.I.D. Systems, Inc.
John F. Wakerly
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Alternate Mark Invert (AMI) transceiver with switchable detection a...
Patent number
4,584,690
Issue date
Apr 22, 1986
D.A.V.I.D. Systems, Inc.
Luca Cafiero
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Printed circuit board connector system
Patent number
4,579,406
Issue date
Apr 1, 1986
D.A.V.I.D. Systems, Inc.
Arthur I. Laursen
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73747038 - DAVID EXPRESSNET
Serial number
73747038
Registration number
1579801
Filing date
Aug 16, 1988
DAVID SYSTEMS, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73730398 - D-LINK
Serial number
73730398
Filing date
May 23, 1988
DAVID SYSTEMS, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments