Inventor · disambiguated record
Karl U. Ingard
Also filed as: INGARD KARL U · INGARD KARL UNO
12 granted patents·268 citations·filing 1971–1995
93Inventor score
Top patents by PatentIndex Score
12 records- 0193US5014816ASilencer for gas induction and exhaust systemsDU PONT·Filed 1989·Granted May 14, 1991·64 cites·10 claims
- 0273US4295416AAir distribution systemMITCO CORP·Filed 1978·Granted Oct 20, 1981·26 cites·19 claims
- 0368US5209259AFluid distribution system having noise reduction mechanismDU PONT·Filed 1991·Granted May 11, 1993·34 cites·18 claims
- 0468US4360075ALow back pressure exhaust silencer for diesel locomotivesGEN MOTORS CORP·Filed 1981·Granted Nov 23, 1982·33 cites·4 claims
- 0567US4346781ALined-duct acoustic filterMASSACHUSETTS INST TECHNOLOGY·Filed 1980·Granted Aug 31, 1982·30 cites·8 claims
- 0663US4418788ABranch take-off and silencer for an air distribution systemMITCO CORP·Filed 1981·Granted Dec 6, 1983·21 cites·5 claims
- 0759US4319521AAir distribution systemMITCO CORP·Filed 1980·Granted Mar 16, 1982·17 cites·14 claims
- 0845US4832147ASound reduction membraneDU PONT·Filed 1987·Granted May 23, 1989·15 cites·9 claims
- 0944US4313522AStatic pressure regain coupler for an air distribution systemMITCO CORP·Filed 1979·Granted Feb 2, 1982·8 cites·11 claims
- 1040US3952264AGas laser with suppressed low-frequency noiseMASSACHUSETTS INST TECHNOLOGY·Filed 1971·Granted Apr 20, 1976·4 cites·4 claims
- 1139US4182430ABranch take-off and silencer for an air distribution systemMITCO CORP·Filed 1978·Granted Jan 8, 1980·6 cites·13 claims
- 1238US5597985AAcoustically inactive corrugated structureDU PONT·Filed 1995·Granted Jan 28, 1997·10 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →