Darrell Duffy

Follow

Person

Windham, NH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Computer network having a virtual circuit message carrying a plural...
- Patent number 5,734,659
- Issue date Mar 31, 1998
- Digital Equipment Corporation
- Bruce Mann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local area network with server and virtual circuits
- Patent number 5,621,734
- Issue date Apr 15, 1997
- Digital Equipment Corporation
- Bruce E. Mann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local area network for digital data processing system
- Patent number 5,058,108
- Issue date Oct 15, 1991
- Digital Equipment Corporation
- Bruce Mann
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Local area network for digital data processing system including tim...
- Patent number 4,975,904
- Issue date Dec 4, 1990
- Digital Equipment Corporation
- Bruce Mann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Message transmission control arrangement for node in local area net...
- Patent number 4,975,905
- Issue date Dec 4, 1990
- Digital Equipment Corporation
- Bruce Mann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local area network for digital data processing system
- Patent number 4,823,122
- Issue date Apr 18, 1989
- Digital Equipment Corporation
- Bruce Mann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE