John P. Ekstrand

Person

Palo Alto, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Thermal induction heater
- Patent number 5,300,750
- Issue date Apr 5, 1994
- Metcal, Inc.
- Philip S. Carter
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Induction heated cathode
- Patent number 5,055,743
- Issue date Oct 8, 1991
- Spectra Physics, Inc.
- John P. Ekstrand
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Air cooled RF induction excited ion laser
- Patent number 5,048,032
- Issue date Sep 10, 1991
- Spectra-Physics
- John P. Ekstrand
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Crossed dot bar graph display for indication of position of a light...
- Patent number 5,047,609
- Issue date Sep 10, 1991
- Spectra-Physics
- John P. Ekstrand
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Switched resistor regulator control when transfer function includes...
- Patent number 4,988,942
- Issue date Jan 29, 1991
- Spectra-Physics, Inc.
- John P. Ekstrand
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Beam position sensor with time shared normalizing circuit
- Patent number 4,982,078
- Issue date Jan 1, 1991
- Spectra Physics, Inc.
- John P. Ekstrand
- G01 - MEASURING TESTING
Information Patent Grant
Angular optical cavity alignment adjustment utilizing variable dist...
- Patent number 4,953,176
- Issue date Aug 28, 1990
- Spectra-Physics
- John P. Ekstrand
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Feedback loop gain compensation for a switched resistor regulator
- Patent number 4,947,102
- Issue date Aug 7, 1990
- Spectra-Physics, Inc.
- John P. Ekstrand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Switched resistor regulator with diode-snubber for parasitic induct...
- Patent number 4,816,741
- Issue date Mar 28, 1989
- Spectra-Physics
- John Ekstrand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Shunt switched resistor regulator with diode snubber
- Patent number 4,814,966
- Issue date Mar 21, 1989
- Spectra-Physics, Inc.
- John Ekstrand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Switched resistor regulator with linear dissipative regulator
- Patent number 4,719,404
- Issue date Jan 12, 1988
- Spectra-Physics, Inc.
- John P. Ekstrand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Switched resistor regulator
- Patent number 4,668,906
- Issue date May 26, 1987
- John P. Ekstrand
- G05 - CONTROLLING REGULATING
Information Patent Grant
Signal processor method and apparatus
- Patent number 4,000,397
- Issue date Dec 28, 1976
- Spectra Physics, Inc.
- Raymond T. Hebert
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Optimizing power for second laser
- Publication number 20050078730
- Publication date Apr 14, 2005
- Kevin Holsinger
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optimizing power for second laser
- Publication number 20040001523
- Publication date Jan 1, 2004
- Kevin Holsinger
- H01 - BASIC ELECTRIC ELEMENTS

John P. Ekstrand

Person

Patents Grantslast 30 patents

Thermal induction heater

Induction heated cathode

Air cooled RF induction excited ion laser

Crossed dot bar graph display for indication of position of a light...

Switched resistor regulator control when transfer function includes...

Beam position sensor with time shared normalizing circuit

Angular optical cavity alignment adjustment utilizing variable dist...

Feedback loop gain compensation for a switched resistor regulator

Switched resistor regulator with diode-snubber for parasitic induct...

Shunt switched resistor regulator with diode snubber

Switched resistor regulator with linear dissipative regulator

Switched resistor regulator

Signal processor method and apparatus

Patents Applicationslast 30 patents

Optimizing power for second laser

Optimizing power for second laser