Inventor · disambiguated record
Holger T. Sommer
Also filed as: SOMMER HOLGER · SOMMER HOLGER T
13 granted patents·433 citations·filing 1988–2020
93Inventor score
Top patents by PatentIndex Score
13 records- 0195US4942305AIntegrating sphere aerosol particle detectorPACIFIC SCIENTIFIC CO·Filed 1989·Granted Jul 17, 1990·129 cites·10 claims
- 0280US4984889AParticle size measuring system with coincidence detectionPACIFIC SCIENTIFIC CO·Filed 1989·Granted Jan 15, 1991·44 cites·5 claims
- 0378US5092675AVacuum line particle detector with slab laserPACIFIC SCIENTIFIC CO·Filed 1989·Granted Mar 3, 1992·39 cites·9 claims
- 0477US4950073ASubmicron particle counting enlarging the particles in a condensation based growth processPACIFIC SCIENTIFIC CO·Filed 1989·Granted Aug 21, 1990·39 cites·6 claims
- 0572US5438420AMonitoring of fluid contamination level wherein the light energy is focused on the fluid passage meansVICKERS INC·Filed 1993·Granted Aug 1, 1995·38 cites·5 claims
- 0672US5007297AParticle size measuring system with automatic dilution of samplePACIFIC SCIENTIFIC CO·Filed 1988·Granted Apr 16, 1991·31 cites·6 claims
- 0770US5033851ALight scattering method and apparatus for detecting particles in liquid samplePACIFIC SCIENTIFIC CO·Filed 1989·Granted Jul 23, 1991·28 cites·6 claims
- 0870US4917496AParticle size measuring instrument with direct scattered light detectionPACIFIC SCIENTIFIC CO·Filed 1988·Granted Apr 17, 1990·28 cites·12 claims
- 0963US5939727AContamination sensorCATERPILLAR INC·Filed 1997·Granted Aug 17, 1999·26 cites·14 claims
- 1057US5061065AParticle contamination detection in fluids through the external section of a laserPACIFIC SCIENTIFIC CO·Filed 1989·Granted Oct 29, 1991·17 cites·12 claims
- 1145US12409735B2Vehicle with current collectorSiemens Mobility GmbH·Filed 2020·Granted Sep 9, 2025·0 cites·4 claims
- 1239US4979822AParticle measuring fluid cell having non-corrodible shimsPACIFIC SCIENTIFIC CO·Filed 1989·Granted Dec 25, 1990·7 cites·19 claims
- 1336US4934183AExcess air contamination level indicatorPACIFIC SCIENTIFIC CO·Filed 1989·Granted Jun 19, 1990·7 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →