Inventor · disambiguated record
Stefan Hammelstein
Also filed as: HAMMELSTEIN STEFAN
7 granted patents·3 pending applications·61 citations·filing 1996–2020
82Inventor score
Technology areasC11D
Top patents by PatentIndex Score
10 records- 0191US7585825B2Scented solid substances comprising a non-ionic surfactant-impregnated carrierHENKEL AG & CO KGAA·Filed 2006·Granted Sep 8, 2009·23 cites·11 claims
- 0287US11680225B2Method for producing a washing agent with improved optical and rheological propertiesHENKEL AG & CO KGAA·Filed 2020·Granted Jun 20, 2023·2 cites·20 claims
- 0379US6221824B1Process for the production of compounded acetonitrile derivativesHENKEL KGAA·Filed 2000·Granted Apr 24, 2001·23 cites·32 claims
- 0454US11155771B2Method for preparing a liquid washing or cleaning agent using a preservative-free dye solutionHENKEL AG & CO KGAA·Filed 2018·Granted Oct 26, 2021·0 cites·13 claims
- 0553US2010022437A1Liquid SupportHENKEL AG & CO KGAA·Filed 2009·Application pending·0 cites
- 0643US7279453B2Foam regulating granulateHENKEL KGAA·Filed 2003·Granted Oct 9, 2007·0 cites·17 claims
- 0743US6034050AAmorphous alkali metal silicate compoundHENKEL KGAA·Filed 1996·Granted Mar 7, 2000·9 cites·2 claims
- 0842US2008293609A1Absorptive particlesARTIGA GONZALEZ RENE-ANDRES·Filed 2007·Application pending·0 cites
- 0940US2007117737A1Particles comprising discrete fine-particulate surfactant particlesARTIGA GONZALEZ RENE-ANDRES·Filed 2006·Application pending·0 cites
- 1032US6200498B1Process for producing paraffin-containing foam regulatorsHENKEL KGAA·Filed 1997·Granted Mar 13, 2001·4 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Stefan Hammelstein files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →