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Glenn E. Spangler — 14 Patents

ETEnvironmental Technologies: 6 patents #1 of 31Top 4%
BLBendix Limited: 3 patents #90 of 548Top 20%
ACAllied Consulting: 2 patents #297 of 1,310Top 25%
Honeywell: 1 patents #9,919 of 16,504Top 65%
Baltimore, MD: #231 of 4,923 inventorsTop 5%
Maryland: #2,027 of 35,612 inventorsTop 6%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Glenn E. Spangler has been granted 14 US patents while listed as an inventor at Environmental Technologies. The first was granted in 1982 and the most recent in June 2002. Glenn E. Spangler ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Glenn E. Spangler in Baltimore, MD, US.

Patents per Year

Patents granted per year, 1982 to 2002Bar chart with a peak of 2 patents in 1990.peak 21982: 1 patents19821983: 1 patents1984: 1 patents19841985: 1 patents1987: 1 patents19871989: 1 patents1990: 2 patents19901991: 2 patents1992: 1 patents19921994: 1 patents2000: 1 patents20002002: 1 patents2002

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6407382 Discharge ionization source — 2002-06-18
6124592 Ion mobility storage trap and method — 2000-09-26
5338931 Photoionization ion mobility spectrometer Joseph E. Roehl, Gautam B. Patel, Alvin Dorman 1994-08-16 $230,000
5083019 Preconcentrator for ion mobility spectrometer — 1992-01-21
5053343 Selective ionization of gas constituents using electrolytic reactions Kishore N. Vora, Donald N. Campbell, Robert C. Davis, Julio A. Reategui 1991-10-01
5021654 All ceramic ion mobility spectrometer cell Donald N. Campbell, Robert C. Davis, Eugene F. Fafaul, John P. Carrico 1991-06-04
4950893 Method and apparatus for enhanced ion spectra generation and detection in ion mobility spectrometry Julio A. Reategui, Joseph L. Mangum 1990-08-21
4928033 Thermionic ionization source John P. Carrico, Donald N. Campbell 1990-05-22
4839143 Selective ionization of gas constituents using electrolytic reactions Kishore N. Vora, Donald N. Campbell, Robert C. Davis, Julio A. Reategui 1989-06-13 $3,878,000
4712008 Ion mobility spectrometer Kishore N. Vora, John P. Carrico, Sr., Donald N. Campbell, Charles E. Martin 1987-12-08 $22,507,000
4551624 Ion mobility spectrometer system with improved specificity John N. Cox 1985-11-05 $1,879,000
4445038 Apparatus for simultaneous detection of positive and negative ions in ion mobility spectrometry John F. Wroten, Jr. 1984-04-24
4378499 Chemical conversion for ion mobility detectors using surface interactions Donald N. Campbell, Stanley Seeb 1983-03-29
4311669 Membrane interface for ion mobility detector cells — 1982-01-19 $944,000

Frequent Collaborators

Donald N. Campbell6 shared
Robert C. Davis3 shared
Julio A. Reategui3 shared
Kishore N. Vora3 shared
John P. Carrico2 shared
Stanley Seeb1 shared

Nearby-Ranked Inventors

Ke PAN14
Naor Radami14
Jason Harris14
Gwangjae Jeon14
Masao Zen14
Yoshihiro YAMASAKI14
Sanjay Vakil14
Samuel Bartlett14
Taketoshi Okuno14