Donald N. Campbell

Person

Lake Jackson, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Selective ionization of gas constituents using electrolytic reactions
- Patent number 5,053,343
- Issue date Oct 1, 1991
- Environmental Technologies Group, Inc.
- Kishore N. Vora
- G01 - MEASURING TESTING
Information Patent Grant
All ceramic ion mobility spectrometer cell
- Patent number 5,021,654
- Issue date Jun 4, 1991
- Environmental Technologies Group, Inc.
- Donald N. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Thermionic ionization source
- Patent number 4,928,033
- Issue date May 22, 1990
- Environmental Technologies Group, Inc.
- Glenn E. Spangler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Selective ionization of gas constituents using electrolytic reactions
- Patent number 4,839,143
- Issue date Jun 13, 1989
- Allied-Signal Inc.
- Kishore N. Vora
- G01 - MEASURING TESTING
Information Patent Grant
Amperometric gas sensor containing a solid electrolyte
- Patent number 4,744,954
- Issue date May 17, 1988
- Allied-Signal Inc.
- Donald N. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Ion mobility spectrometer
- Patent number 4,712,008
- Issue date Dec 8, 1987
- Allied Corporation
- Kishore N. Vora
- G01 - MEASURING TESTING
Information Patent Grant
Ion gate sample gas inlet control for gas chromatograph analyzer
- Patent number 4,597,299
- Issue date Jul 1, 1986
- Allied Corporation
- Donald N. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Electrochemical gas sensor
- Patent number 4,595,486
- Issue date Jun 17, 1986
- Allied Corporation
- John C. Schmidt
- G01 - MEASURING TESTING
Information Patent Grant
Electrochemical gas sensor
- Patent number 4,525,266
- Issue date Jun 25, 1985
- Allied Corporation
- John C. Schmidt
- G01 - MEASURING TESTING
Information Patent Grant
Enzymatic toxic gas sensor
- Patent number 4,525,704
- Issue date Jun 25, 1985
- Allied Corporation
- Donald N. Campbell
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Method of and system for real time differential pulse detection
- Patent number 4,500,391
- Issue date Feb 19, 1985
- Allied Corporation
- John C. Schmidt
- G01 - MEASURING TESTING
Information Patent Grant
Chemical conversion for ion mobility detectors using surface intera...
- Patent number 4,378,499
- Issue date Mar 29, 1983
- The Bendix Corporation
- Glenn E. Spangler
- G01 - MEASURING TESTING

Donald N. Campbell

Person

Patents Grantslast 30 patents

Selective ionization of gas constituents using electrolytic reactions

All ceramic ion mobility spectrometer cell

Thermionic ionization source

Selective ionization of gas constituents using electrolytic reactions

Amperometric gas sensor containing a solid electrolyte

Ion mobility spectrometer

Ion gate sample gas inlet control for gas chromatograph analyzer

Electrochemical gas sensor

Electrochemical gas sensor

Enzymatic toxic gas sensor

Method of and system for real time differential pulse detection

Chemical conversion for ion mobility detectors using surface intera...