loadpatents
name:-0.00050187110900879
name:-0.0072128772735596
name:-0.00046706199645996
International Environmental Systems, Inc., USA Patent Filings

International Environmental Systems, Inc., USA

Patent Applications and Registrations

Patent applications and USPTO patent grants for International Environmental Systems, Inc., USA.The latest application filed is for "biological process for groundwater and wastewater treatment".

Company Profile
0.6.0
  • International Environmental Systems, Inc., USA - Latham NY
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Biological process for groundwater and wastewater treatment
Grant 5,451,320 - Wang , et al. * September 19, 1
1995-09-19
Liquid treatment system with air emission control
Grant 5,399,267 - Wang , et al. * March 21, 1
1995-03-21
Sequencing batch liquid treatment
Grant 5,354,458 - Wang , et al. October 11, 1
1994-10-11
Combined coarse and fine bubble separation system
Grant 5,275,732 - Wang , et al. January 4, 1
1994-01-04
Water and wastewater treatment system
Grant 5,240,600 - Wang , et al. August 31, 1
1993-08-31
Method and apparatus for filtration with plural ultraviolet treatment stages
Grant 5,236,595 - Wang , et al. * August 17, 1
1993-08-17

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