John A. Krawczak

Person

Hopkins, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Radio frequency photonic link with differential drive to an optical...
- Patent number 7,715,081
- Issue date May 11, 2010
- Lockheed Martin Corporation
- John A. Krawczak
- G02 - OPTICS
Information Patent Grant
Range extended electrooptic modulator
- Patent number 7,499,603
- Issue date Mar 3, 2009
- Lockheed Martin Corporation
- John A. Krawczak
- G02 - OPTICS
Information Patent Grant
Integrated volume holographic optical circuit apparatus
- Patent number 7,184,622
- Issue date Feb 27, 2007
- Lockheed Martin Corporation
- Brian L. Uhlhorn
- G02 - OPTICS
Information Patent Grant
Multi-node interconnect topology with nodes containing SCI link con...
- Patent number 5,796,744
- Issue date Aug 18, 1998
- Lockheed Martin Corporation
- John Anthony Krawczak
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for transmitting optical data
- Patent number 5,557,693
- Issue date Sep 17, 1996
- Unisys Corporation
- Rick C. Stevens
- G02 - OPTICS
Information Patent Grant
Switching regulator control for a laser diode
- Patent number 5,425,040
- Issue date Jun 13, 1995
- Unisys Corporation
- John A. Krawczak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit to eliminate signal chatter in the output of a fiber-optic...
- Patent number 5,391,950
- Issue date Feb 21, 1995
- Unisys Corporation
- John A. Krawczak
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated solid state non-volatile fiber optic switchboard
- Patent number 4,838,637
- Issue date Jun 13, 1989
- Unisys Corporation
- Ernest J. Torok
- G02 - OPTICS
Information Patent Grant
Image rotating diffraction grating
- Patent number 4,398,798
- Issue date Aug 16, 1983
- Sperry Corporation
- John A. Krawczak
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multipass laser optics for light deflector
- Patent number 4,328,468
- Issue date May 4, 1982
- Sperry Corporation
- John A. Krawczak
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magneto-resistive readout of a cross-tie wall memory system using a...
- Patent number 4,034,359
- Issue date Jul 5, 1977
- Sperry Rand Corporation
- Ernest J. Torok
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Integrated volume holographic optical circuit apparatus
- Publication number 20060210214
- Publication date Sep 21, 2006
- Brian L. Uhlhorn
- G02 - OPTICS
Information Patent Application
Electroabsorption modulator biasing
- Publication number 20050225826
- Publication date Oct 13, 2005
- Lockheed Martin Corporation
- John A. Krawczak
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

John A. Krawczak

Person

Patents Grantslast 30 patents

Radio frequency photonic link with differential drive to an optical...

Range extended electrooptic modulator

Integrated volume holographic optical circuit apparatus

Multi-node interconnect topology with nodes containing SCI link con...

Apparatus and method for transmitting optical data

Switching regulator control for a laser diode

Circuit to eliminate signal chatter in the output of a fiber-optic...

Integrated solid state non-volatile fiber optic switchboard

Image rotating diffraction grating

Multipass laser optics for light deflector

Magneto-resistive readout of a cross-tie wall memory system using a...

Patents Applicationslast 30 patents

Integrated volume holographic optical circuit apparatus

Electroabsorption modulator biasing