Inventor · disambiguated record
Holger Wiederhold
Also filed as: WIEDERHOLD HOLGER
14 granted patents·7 pending applications·54 citations·filing 1999–2022
88Inventor score
Files withEVONIK OPERATIONS GMBH11EVONIK DEGUSSA GMBH5WINTERBERG MARKUS2EVONIK INDUSTRIES AG1MERCK PATENT GMBH1
Top patents by PatentIndex Score
21 records- 0195US10214471B2Method for producing propylene glycol from propene and hydrogen peroxideEVONIK DEGUSSA GMBH·Filed 2016·Granted Feb 26, 2019·17 cites·22 claims
- 0293US10053438B2Integrated process for making propene oxide and an alkyl tert-butyl etherEVONIK DEGUSSA GMBH·Filed 2016·Granted Aug 21, 2018·12 cites·13 claims
- 0391US10053440B2Integrated process for making propene oxide and an alkyl tert-butyl etherEVONIK DEGUSSA GMBH·Filed 2016·Granted Aug 21, 2018·10 cites·17 claims
- 0473US10597374B2Integrated process for making propene and propene oxide from propaneEVONIK DEGUSSA GMBH·Filed 2017·Granted Mar 24, 2020·1 cites·17 claims
- 0568US8940951B2Preparation of isobutene by dissociation of MTBEWINTERBERG MARKUS·Filed 2010·Granted Jan 27, 2015·1 cites·18 claims
- 0663US8633345B2Process for preparing isobutene by cleaving MTBE-containing mixturesWINTERBERG MARKUS·Filed 2009·Granted Jan 21, 2014·1 cites·20 claims
- 0761US12479783B2Method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Granted Nov 25, 2025·0 cites·17 claims
- 0860US12459881B2Method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Granted Nov 4, 2025·0 cites·13 claims
- 0959US12459882B2Process for preparing 1,2-propanediol from propaneEVONIK OPERATIONS GMBH·Filed 2021·Granted Nov 4, 2025·0 cites·5 claims
- 1059US9102640B2Process for the manufacture of a 1,2-epoxide and a device for carrying out said processEVONIK DEGUSSA GMBH·Filed 2014·Granted Aug 11, 2015·0 cites·16 claims
- 1157US2023382839A1A method for the preparation of 1,2-propanediol, dipropylene glycol and tripropylene glycolEVONIK OPERATIONS GMBH·Filed 2021·Application pending·0 cites
- 1256US12486210B2Method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Granted Dec 2, 2025·0 cites·16 claims
- 1356US2023382829A1A method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Application pending·0 cites
- 1456US2023399280A1A method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Application pending·0 cites
- 1556US2022298128A1Integrated process and plant for making styrene and propene oxideEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 1656US2023382833A1A method for the preparation of 1,2-propanediol and dipropylene glycolEVONIK OPERATIONS GMBH·Filed 2021·Application pending·0 cites
- 1755US12486209B2Method for the preparation of 1,2-propanediolEVONIK OPERATIONS GMBH·Filed 2021·Granted Dec 2, 2025·0 cites·20 claims
- 1849US2022126247A1A triphasic reactorEVONIK OPERATIONS GMBH·Filed 2020·Application pending·0 cites
- 1948US8859790B2Process for the manufacture of a 1,2-epoxide and a device for carrying out said processMuppa Prasad·Filed 2011·Granted Oct 14, 2014·0 cites·18 claims
- 2042US6573002B1Purification of battery electrolytes by means of chemical adsorptionMERCK PATENT GMBH·Filed 1999·Granted Jun 3, 2003·12 cites·14 claims
- 2136US2015225861A1Process for the electrochemical production of 2,2,4-trimethyladipic acid and 2,4,4-trimethyladipic acidEVONIK INDUSTRIES AG·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Holger Wiederhold 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 →