Inventor · Wasserburg am Inn, DE

Gerhard Hefele

3Patents
3h-index
10Co-inventors
40Inventor score

Filing activity: Aug 26, 1999 → Nov 30, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US6528683B1 Method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic hydrocarbons and catalysts obtained in such a manner Emerging Cross-Sectional Technologies 46 Expired
US6362345B1 Method for producing phthalic anhydride by means of catalytic vapor-phase oxidation of o-xylol/naphthalene mixtures Chemistry; Metallurgy 17 Expired
US6458970B1 Method for producing acid phthalic anhydride and an appropriate shell catalyst containing titanium-vanadium-cesium Chemistry; Metallurgy 13 Expired

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