PH

Peter P. Hairston

TC Tsi Group Co.: 5 patents #8 of 151Top 6%
NG Northrop Grumman: 4 patents #288 of 2,250Top 15%
📍 North Oaks, MN: #56 of 166 inventorsTop 35%
🗺 Minnesota: #8,331 of 52,454 inventorsTop 20%
Overall (All Time): #567,094 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
9880097 Apparatus and system for simultaneously measuring particle concentration and biocontaminants in an aerosol particle flow Jim Evenstad, Dahu Qi, Darrick L. Niccum 2018-01-30
7576844 Systems and methods for use in detecting harmful aerosol particles Carl B. Freidhoff 2009-08-18
7554663 Systems and methods for use in detecting harmful aerosol particles Carl B. Freidhoff 2009-06-30
7525660 Systems and methods for use in detecting harmful aerosol particles George W. Gigioli, David W. Bope, Edward A. Miller 2009-04-28
7423751 Systems and methods for use in detecting harmful aerosol particles Carl B. Freidhoff 2008-09-09
7057712 Analysis systems detecting particle size and fluorescence Tyler Beck, Stanley L. Kaufman 2006-06-06
5999250 System for detecting fluorescing components in aerosols Frederick R. Quant 1999-12-07
5561515 Apparatus for measuring particle sizes and velocities Frank D. Dorman, Gilmore J. Sem, Jugal Agarwal 1996-10-01
5121988 Single particle detector method and apparatus utilizing light extinction within a sheet of light James L. Blesener, Stanley L. Kaufman, David Blackford, Frank D. Dorman 1992-06-16