Inventor · disambiguated record
David J. Hunniford
Also filed as: HUNNIFORD DAVID J
10 granted patents·228 citations·filing 1988–2006
91Inventor score
Files withSIEMENS WATER TECH HOLDG CORP3UNITED STATES FILTER CORP3DAVIS WATER & WASTE IND INC2DAVIS WATER AND WASTE IND INC1U S FILTER DISTRIBUTION GROUP1
Top patents by PatentIndex Score
10 records- 0194US7186341B2Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewaterSIEMENS WATER TECH HOLDG CORP·Filed 2006·Granted Mar 6, 2007·24 cites·21 claims
- 0293US7326340B2System for controlling sulfide generationSIEMENS WATER TECH HOLDG CORP·Filed 2005·Granted Feb 5, 2008·27 cites·18 claims
- 0392US7138049B2Apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewaterUNITED STATES FILTER CORP·Filed 2005·Granted Nov 21, 2006·18 cites·8 claims
- 0491US4911843AProcess for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systemsDAVIS WATER AND WASTE IND INC·Filed 1988·Granted Mar 27, 1990·77 cites·28 claims
- 0581US7285207B2Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewaterSIEMENS WATER TECH HOLDG CORP·Filed 2005·Granted Oct 23, 2007·6 cites·17 claims
- 0681USRE37181EProcess for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systemsUNITED STATES FILTER CORP·Filed 1998·Granted May 22, 2001·33 cites·28 claims
- 0779US7087172B2Methods for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewaterUNITED STATES FILTER CORP·Filed 2003·Granted Aug 8, 2006·16 cites·23 claims
- 0870USRE36651EProcess for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systemsU S FILTER DISTRIBUTION GROUP·Filed 1995·Granted Apr 11, 2000·25 cites·1 claims
- 0934USD361834SAir scrubber unit for use in the removal of pollutants from the airDAVIS WATER & WASTE IND INC·Filed 1994·Granted Aug 29, 1995·2 cites·1 claims
- 1029USD347469SAir scrubber unit for use in removal of pollutants from the airDAVIS WATER & WASTE IND INC·Filed 1991·Granted May 31, 1994·0 cites·1 claims
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