John N. Dukes

Person

Los Altos Hills, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Telemetered patient location system and method
- Patent number 5,396,224
- Issue date Mar 7, 1995
- Hewlett-Packard Company
- John N. Dukes
- G07 - CHECKING-DEVICES
Information Patent Grant
Uterine contraction detection
- Patent number 5,205,296
- Issue date Apr 27, 1993
- Hewlett-Packard Company
- John N. Dukes
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Uterine contraction detection
- Patent number 5,168,879
- Issue date Dec 8, 1992
- Hewlett-Packard Company
- John N. Dukes
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Intelligent electrocardiogram system
- Patent number 5,042,498
- Issue date Aug 27, 1991
- Hewlett-Packard Company
- John N. Dukes
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Slow motion cardiac imaging
- Patent number 5,016,642
- Issue date May 21, 1991
- Hewlett-Packard Company
- John N. Dukes
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Exponential decay time constant measurement using frequency of offs...
- Patent number 4,716,363
- Issue date Dec 29, 1987
- Hewlett-Packard Company
- John N. Dukes
- G01 - MEASURING TESTING
Information Patent Grant
Testing and calibrating of amplitude insensitive delay lines
- Patent number 4,703,251
- Issue date Oct 27, 1987
- Hewlett-Packard Company
- Richard A. Baumgartner
- G01 - MEASURING TESTING
Information Patent Grant
Amplitude insensitive delay lines in a transversal filter
- Patent number 4,658,225
- Issue date Apr 14, 1987
- Hewlett-Packard Company
- John N. Dukes
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplitude insensitive delay line
- Patent number 4,638,191
- Issue date Jan 20, 1987
- Hewlett-Packard Company
- Richard A. Baumgartner
- G01 - MEASURING TESTING
Information Patent Grant
Amplitude insensitive delay lines in an accoustic imaging system
- Patent number 4,633,308
- Issue date Dec 30, 1986
- Hewlett-Packard Company
- John N. Dukes
- G01 - MEASURING TESTING
Information Patent Grant
Amplitude insensitive delay lines in a frequency modulated signal d...
- Patent number 4,603,301
- Issue date Jul 29, 1986
- Hewlett-Packard Company
- John N. Dukes
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Receiving radiation from loops in a common plane for monitoring hos...
- Patent number 4,573,475
- Issue date Mar 4, 1986
- Hewlett-Packard Company
- John N. Dukes
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fine positioning beam director system
- Patent number 4,480,913
- Issue date Nov 6, 1984
- Hewlett-Packard Company
- John N. Dukes
- G01 - MEASURING TESTING
Information Patent Grant
Multipath fine positioning beam director
- Patent number 4,227,079
- Issue date Oct 7, 1980
- Hewlett-Packard Company
- John N. Dukes
- G01 - MEASURING TESTING

John N. Dukes

Person

Patents Grantslast 30 patents

Telemetered patient location system and method

Uterine contraction detection

Uterine contraction detection

Intelligent electrocardiogram system

Slow motion cardiac imaging

Exponential decay time constant measurement using frequency of offs...

Testing and calibrating of amplitude insensitive delay lines

Amplitude insensitive delay lines in a transversal filter

Amplitude insensitive delay line

Amplitude insensitive delay lines in an accoustic imaging system

Amplitude insensitive delay lines in a frequency modulated signal d...

Receiving radiation from loops in a common plane for monitoring hos...

Fine positioning beam director system

Multipath fine positioning beam director