PP

Peter J. Petit

EN Envirex: 9 patents #1 of 52Top 2%
ET Evoqua Water Technologies: 6 patents #28 of 216Top 15%
AL Allis-Chalmers: 3 patents #25 of 232Top 15%
ST Siemens Water Technologies: 3 patents #18 of 109Top 20%
SI Siemens Industry: 1 patents #380 of 836Top 50%
Overall (All Time): #173,210 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10822864 Compliant hermetic seal system for flat glass panel assembly 2020-11-03
10207210 High flow disc filter William E. Davis 2019-02-19
9366071 Low-friction spacer system for vacuum insulated glass 2016-06-14
9339745 Trash tolerant filter support for a disc filter William E. Davis 2016-05-17
9028692 High flow disc filter William E. Davis 2015-05-12
9023208 Disc filter William E. Davis 2015-05-05
8808542 Disc filter William E. Davis 2014-08-19
8801929 Trash tolerant filter support for a disc filter William E. Davis 2014-08-12
8118175 Venting device for a disc filter William E. Davis 2012-02-21
7862014 Hybrid diffuser system headloss balancing John Lechner, Lawrence B. Ratzlow 2011-01-04
7569147 Screening of inert solids from a low-yield wastewater treatment process Betty-Ann Curtis, Marc E. Roehl, Michael L. Doyle 2009-08-04
7243912 Aeration diffuser membrane slitting pattern Tieniu Chen 2007-07-17
5976365 Biomass growth control apparatus for fluid bed biological reactor 1999-11-02
5766491 Backflow prevention system for media bed reactor Eugene E. Mazewski, Robert Hines 1998-06-16
5766484 Dissolved gas floatation device William H. Boyle, Charles S. Applegate 1998-06-16
5538635 Method for dissolving gas in liquid including pressurized bubble contactor in sidestream Eugene E. Mazewski, Richard E. Speece 1996-07-23
5454938 Bed height sensing device for biological reactor Michael L. Doyle, Eugene E. Mazewski 1995-10-03
5411660 Apparatus for dissolving gas in liquid including pressurized bubble contactor in sidestream Eugene E. Mazewski, Richard E. Speece 1995-05-02
5372712 Biomass growth control apparatus for fluid bed biological reactor 1994-12-13
5296200 Apparatus for venting excess gas bubbles from a bubble contactor 1994-03-22
5296201 Apparatus for venting a pressurized bubble contactor 1994-03-22
4378974 Start-up method for coal gasification plant Khosrow Farnia 1983-04-05
4373908 Kiln shell nozzle with annular fluid delivery Walter J. Hartwig 1983-02-15
4373909 Gas injecting kiln shell nozzle with particle entry barriers Thomas J. Gill 1983-02-15