Inventor · Rastenberg, DE

Ralf Pelzer

68Patents
7h-index
104Co-inventors
75Inventor score

Filing activity: Apr 3, 1992 → Dec 15, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5266592A Compositions which have a physiological cooling effect, and active compounds suitable for these compositions Human Necessities 239 Expired
US5585091A Use of benzazoles UV absorbers, new benzazoles and a process for their preparation Chemistry; Metallurgy 61 Expired
US5703123A Method for causing a physiological cooling effect to the skin or mucosa involving the application of carbonic acid esters Chemistry; Metallurgy 31 Expired
US10087395B2 Use of hexadeca-8,15-dienal as aroma chemical Human Necessities 18 Active
US8940940B2 Process for preparing macrocyclic ketones Chemistry; Metallurgy 17 Active
US10202324B2 Process for the preparation of melonal Chemistry; Metallurgy 10 Active
US8618315B2 Method for producing 2-substituted tetrahydropyranols Chemistry; Metallurgy 9 Active
US10202323B2 Process for preparing an arylpropene Performing Operations; Transporting 7 Active
US10112882B2 Use of novel cyclic carbaldeydes as an aromatic substance Chemistry; Metallurgy 7 Active
US8450534B2 Process for preparing 4-cyclohexyl-2-methyl-2-butanol Chemistry; Metallurgy 7 Active
US9765003B2 Process for producing 2,6-dimethyl-5-hepten-1-al Chemistry; Metallurgy 6 Active
US8410293B2 Process for the preparation of cyclic enol ethers Emerging Cross-Sectional Technologies 5 Active
US10144691B2 Process for preparing 1-[(1R,4R/S,8S)-10,10-dimethyl-7-methylene-4-bicyclo[6.2.0]decanyl]ethanone Chemistry; Metallurgy 5 Active
US9056812B2 Process for preparing 4-cyclohexyl-2-methyl-2-butanol Chemistry; Metallurgy 4 Active
US9765001B2 Method for producing arylpropenes Chemistry; Metallurgy 4 Active
US9139549B2 Process for the integrated preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyrans and of 2-substituted 4-Methyltetrahydropyrans Chemistry; Metallurgy 4 Active
US9920007B2 Process for the preparation of 1-(2,6,6-trimethylcyclohexyl)-alkan-3-ols Chemistry; Metallurgy 4 Active
US10106477B2 Process for preparing 1,4-bis(ethoxymethyl)cyclohexane Chemistry; Metallurgy 3 Active
US9950982B2 1-(7,10,10-trimethyl-4-bicyclo(6.2.0)decanyl)ethanone as novel aroma chemical Chemistry; Metallurgy 3 Active
US10308580B2 Process for preparing an arylpropene Chemistry; Metallurgy 3 Active
US9340754B2 Process for the preparation of cyclohexyl-substituted tertiary alkanols Chemistry; Metallurgy 3 Active
US8648031B2 Macrocyclic lactones Human Necessities 3 Active
US8779169B2 Process for the preparation of 2 substituted tetrahydropyranols Emerging Cross-Sectional Technologies 2 Active
US9217121B2 Use of 4,8 dimethyl-3,7 nonadien-2-ol as fragrance Chemistry; Metallurgy 2 Active
US10106517B2 Method for producing tetrahydropyranyl esters Chemistry; Metallurgy 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.