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Henry Wohltjen — 24 Patents

MSMicrosensor Systems: 8 patents #1 of 4Top 25%
UFUS Air Force: 7 patents #770 of 16,312Top 5%
TTTd Tools: 2 patents #2 of 8Top 25%
TAThe United States Of America: 2 patents #21 of 521Top 5%
SSSpectro Scientific: 1 patents #9 of 29Top 35%
XHXhale: 1 patents #6 of 23Top 30%
Bowling Green, KY: #10 of 245 inventorsTop 5%
Kentucky: #316 of 11,577 inventorsTop 3%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Henry Wohltjen has been granted 24 US patents while listed as an inventor at Microsensor Systems. The first was granted in 1982 and the most recent in February 2025. Henry Wohltjen ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Henry Wohltjen in Bowling Green, KY, US.

Patents per Year

Patents granted per year, 1982 to 2025Bar chart with a peak of 3 patents in 1988.peak 31982: 1 patents19821984: 2 patents1985: 2 patents19851986: 1 patents1987: 1 patents19871988: 3 patents1996: 1 patents19962001: 1 patents2007: 1 patents20072008: 2 patents2009: 1 patents20092010: 1 patents2012: 1 patents20122013: 1 patents2015: 1 patents20152016: 2 patents2017: 1 patents20172025: 1 patents2025

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
12235235 System and method for gas concentration measurement — 2025-02-25
9638669 Portable fuel dilution meter and method Eric J. Olson, Yuegang Zhao 2017-05-02
9478118 Hand hygiene complicance confirmation system Sam Keown, Mark Klusty, Eric Laster, Richard J. Melker, Ronald Youngblood 2016-10-25
9291038 Apparatus and method for high pressure abrasive fluid injection Thomas L. Dotson 2016-03-22
8925653 Apparatus and method for high pressure abrasive fluid injection Thomas L. Dotson 2015-01-06
8349260 System and method for limiting sensor exposure to ozone — 2013-01-08
8279063 Personnel location and monitoring system and method for enclosed facilities — 2012-10-02
7845206 System, apparatus and method for dispensing chemical vapor — 2010-12-07
7484399 System, apparatus and method for dispensing chemical vapor — 2009-02-03
7449050 System, apparatus and method for concentrating chemical vapors Mark Klusty 2008-11-11
7347974 Materials, method and apparatus for detection and monitoring of chemical species Arthur W. Snow 2008-03-25
7240535 Method and apparatus for gas measurement at substantially constant pressure — 2007-07-10
6221673 Materials, method and apparatus for detection and monitoring of chemical species Arthur W. Snow 2001-04-24
5550062 Method and apparatus for chemical detection by pyrolysis Edward J. Poziomek 1996-08-27
4759210 Apparatus for gas-monitoring and method of conducting same — 1988-07-26
H477 Monolayer-forming substituted phthalocyanine compounds and method of William R. Barger, Neldon L. Jarvis, Arthur W. Snow 1988-06-07
H406 Organophosphorus selective ion mobility spectrometer — 1988-01-05
4636767 Mixed semiconductor film device for monitoring gases William R. Barger, Neldon L. Jarvis, Arthur W. Snow 1987-01-13
4572900 Organic semiconductor vapor sensing method — 1986-02-25
4513087 Reversible optical waveguide vapor sensor John F. Giuliani 1985-04-23
4513280 Method and apparatus for the detection of toxicants Patrick J. Hannan, Arthur V. Stiffey, N. Lynn Jarvis 1985-04-23
4452624 Method for bonding insulator to insulator John F. Giuliani 1984-06-05
4438203 Method and apparatus for determination of lubricant stability Paul J. Sniegoski, Harold Ravner 1984-03-20
4312228 Methods of detection with surface acoustic wave and apparati therefor — 1982-01-26

Frequent Collaborators

Arthur W. Snow4 shared
Neldon L. Jarvis2 shared
John F. Giuliani2 shared
Thomas L. Dotson2 shared
Mark Klusty2 shared
William R. Barger2 shared

Nearby-Ranked Inventors

Tracy Helen Fung24
Yang Li24
Bo Ching Jiang24
Shoham DEKEL24
David B. Coulter24
Akiko WATANO24
Walter Nistico24
Thomas W. Chalberg, Jr.24
Alan R. Dombrowski24