Inventor · disambiguated record
Douglas L. Christians
Also filed as: CHRISTIANS DOUGLAS · CHRISTIANS DOUGLAS L
12 granted patents·1 pending application·467 citations·filing 1988–2009
93Inventor score
Top patents by PatentIndex Score
13 records- 0195US5704218AIntegrated environmental control systemUNITED TECHNOLOGIES CORP·Filed 1996·Granted Jan 6, 1998·160 cites·18 claims
- 0289US7334423B2Dual mode condensing cycleHAMILTON SUNDSTRAND CORP·Filed 2005·Granted Feb 26, 2008·24 cites·14 claims
- 0388US7024874B2Aircraft galley chiller systemHAMILTON SUNDSTRAND·Filed 2004·Granted Apr 11, 2006·48 cites·5 claims
- 0488US5511385AIndependent compartment temperature control for single-pack operationUNITED TECHNOLOGIES CORP·Filed 1994·Granted Apr 30, 1996·92 cites·21 claims
- 0583US7188488B2Pack and a half condensing cycle pack with combined heat exchangersHAMILTON SUNDSTRAND·Filed 2003·Granted Mar 13, 2007·44 cites·10 claims
- 0676US8915095B2Hybrid environmental conditioning systemBRUNO LOUIS J·Filed 2008·Granted Dec 23, 2014·13 cites·18 claims
- 0774US7523622B2Aircraft galley chiller systemHAMILTON SUNDSTRAND CORP·Filed 2004·Granted Apr 28, 2009·25 cites·22 claims
- 0866US7000425B2Manifold for pack and a half condensing cycle pack with combined heat exchangersHAMILTON SUNDSTRAND·Filed 2003·Granted Feb 21, 2006·20 cites·13 claims
- 0963US8936071B2Hybrid cooling system for aircraft applicationsBRUNO LOUIS J·Filed 2009·Granted Jan 20, 2015·7 cites·4 claims
- 1046US5800582ACompact water collectorUNITED TECHNOLOGIES CORP·Filed 1997·Granted Sep 1, 1998·18 cites·12 claims
- 1138US5768896AAir cycle refrigeration and air temperature quenching system and methodUNITED TECHNOLOGIES CORP·Filed 1996·Granted Jun 23, 1998·14 cites·25 claims
- 1237US2004231350A1Compact air conditioning mixer systemFiled 2003·Application pending·0 cites
- 1321US4852637AThermostatic controlled systemUNITED TECHNOLOGIES CORP·Filed 1988·Granted Aug 1, 1989·2 cites·24 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →