Leonard George Cohen

Person

Matawan, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Waveguide grating router employing transmissive Echelle gratings
- Patent number 6,539,149
- Issue date Mar 25, 2003
- Lucent Technologies Inc.
- Giovanni Barbarossa
- G02 - OPTICS
Information Patent Grant
Multiple function bandwidth management systems
- Patent number 6,421,167
- Issue date Jul 16, 2002
- General Dynamics Advanced Technology Systems, Inc.
- Leonard George Cohen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for designing and analyzing optical application s...
- Patent number 5,930,150
- Issue date Jul 27, 1999
- Lucent Technologies Inc.
- Leonard George Cohen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for generating a mask layout of an optical integr...
- Patent number 5,914,889
- Issue date Jun 22, 1999
- Lucent Technologies Inc.
- Leonard George Cohen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for upgrading a hybrid fiber coax network to an all fiber ne...
- Patent number 5,911,019
- Issue date Jun 8, 1999
- Lucent Technologies Inc.
- Leonard G. Cohen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Labeling and tracing system for jumper used in an exchange
- Patent number 5,821,510
- Issue date Oct 13, 1998
- Lucent Technologies Inc.
- Leonard George Cohen
- G02 - OPTICS
Information Patent Grant
Ribbon array optical switch and optical switch architecture utilizi...
- Patent number 5,774,605
- Issue date Jun 30, 1998
- Lucent Technologies, Inc.
- Leonard George Cohen
- G02 - OPTICS
Information Patent Grant
Upgradable fiber-coax network
- Patent number 5,699,176
- Issue date Dec 16, 1997
- Lucent Technologies Inc.
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Comb splitting system and method for a multichannel optical fiber c...
- Patent number 5,680,490
- Issue date Oct 21, 1997
- Lucent Technologies Inc.
- Leonard G. Cohen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network comprising a compact wavelength-dividing component
- Patent number 5,440,416
- Issue date Aug 8, 1995
- AT&T Corp.
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Thermally activated optical switch
- Patent number 5,418,868
- Issue date May 23, 1995
- AT&T Corp.
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Remote sensing in optical fiber networks by synchronously detecting...
- Patent number 5,384,635
- Issue date Jan 24, 1995
- AT&T Corp.
- Leonard G. Cohen
- G01 - MEASURING TESTING
Information Patent Grant
Optical communication system with multiple fiber monitoring
- Patent number 5,329,392
- Issue date Jul 12, 1994
- AT&T Bell Laboratories
- Leonard G. Cohen
- G01 - MEASURING TESTING
Information Patent Grant
Passive optical communication network with broadband upgrade
- Patent number 5,321,541
- Issue date Jun 14, 1994
- AT&T Bell Laboratories
- Leonard G. Cohen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical filter having multiple interferometric stages
- Patent number 5,309,534
- Issue date May 3, 1994
- AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Optical communication network with passive monitoring
- Patent number 5,285,305
- Issue date Feb 8, 1994
- AT&T Bell Laboratories
- Leonard G. Cohen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system comprising a fiber amplifier
- Patent number 5,074,633
- Issue date Dec 24, 1991
- AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Article comprising a passive optical waveguide
- Patent number 5,046,800
- Issue date Sep 10, 1991
- AT&T Bell Laboratories
- Lee L. Blyler
- G02 - OPTICS
Information Patent Grant
Mode scrambler with non-invasive fabrication in an optical fiber's...
- Patent number 4,974,930
- Issue date Dec 4, 1990
- AT&T Bell Laboratories
- Lee L. Blyler
- G02 - OPTICS
Information Patent Grant
Optical fiber sensors for chemical detection
- Patent number 4,834,496
- Issue date May 30, 1989
- American Telephone and Telegraph Company, AT&T Bell Laboratories
- Lee L. Blyler
- G01 - MEASURING TESTING
Information Patent Grant
Waveguide-containing communications and sensing systems
- Patent number 4,820,016
- Issue date Apr 11, 1989
- American Telephone and Telegraph Company, AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
BeF.sub.2 -based optical fibers
- Patent number 4,699,464
- Issue date Oct 13, 1987
- American Telephone and Telegraph Company, AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Optical fiber with depressed index outer cladding
- Patent number 4,691,990
- Issue date Sep 8, 1987
- American Telephone and Telegraph Company, AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Telecommunication system with fiberguide signal filtering
- Patent number 4,460,241
- Issue date Jul 17, 1984
- AT&T Bell Laboratories
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Low loss single mode fiber
- Patent number 4,447,127
- Issue date May 8, 1984
- Bell Telephone Laboratories, Incorporated
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Multimode optical fiber with radially varying attenuation center de...
- Patent number 4,447,124
- Issue date May 8, 1984
- Bell Telephone Laboratories, Incorporated
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Double-clad optical fiberguide
- Patent number 4,435,040
- Issue date Mar 6, 1984
- Bell Telephone Laboratories, Incorporated
- Leonard G. Cohen
- G02 - OPTICS
Information Patent Grant
Multimode optical fiber
- Patent number 3,989,350
- Issue date Nov 2, 1976
- Bell Telephone Laboratories, Incorporated
- Leonard George Cohen
- G02 - OPTICS
Information Patent Grant
Fabrication of microlenses
- Patent number 3,932,184
- Issue date Jan 13, 1976
- Bell Telephone Laboratories, Incorporated
- Leonard George Cohen
- G02 - OPTICS

Leonard George Cohen

Person

Patents Grantslast 30 patents

Waveguide grating router employing transmissive Echelle gratings

Multiple function bandwidth management systems

Method and system for designing and analyzing optical application s...

Method and system for generating a mask layout of an optical integr...

Method for upgrading a hybrid fiber coax network to an all fiber ne...

Labeling and tracing system for jumper used in an exchange

Ribbon array optical switch and optical switch architecture utilizi...

Upgradable fiber-coax network

Comb splitting system and method for a multichannel optical fiber c...

Optical network comprising a compact wavelength-dividing component

Thermally activated optical switch

Remote sensing in optical fiber networks by synchronously detecting...

Optical communication system with multiple fiber monitoring

Passive optical communication network with broadband upgrade

Optical filter having multiple interferometric stages

Optical communication network with passive monitoring

Optical communication system comprising a fiber amplifier

Article comprising a passive optical waveguide

Mode scrambler with non-invasive fabrication in an optical fiber's...

Optical fiber sensors for chemical detection

Waveguide-containing communications and sensing systems

BeF.sub.2 -based optical fibers

Optical fiber with depressed index outer cladding

Telecommunication system with fiberguide signal filtering

Low loss single mode fiber

Multimode optical fiber with radially varying attenuation center de...

Double-clad optical fiberguide

Multimode optical fiber

Fabrication of microlenses