Peter Hofmann
44Patents
9h-index
64Co-inventors
78Inventor score
Filing activity: Dec 7, 1973 → Oct 11, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5580574A | Pharmaceutical composition for transdermal delivery | Human Necessities | 21 | Expired |
| US7173138B2 | Ligands for pnicogen chelate complexes with a metal of subgroup VIII and use of the complexes as catalysts for hydroformylation, carbonylation, hydrocyanation or hydrogenation | Performing Operations; Transporting | 20 | Expired |
| US4731393A | Process for chemically bonding stabilizers to polymers | Chemistry; Metallurgy | 16 | Expired |
| US4898934A | Process for manufacturing light-colored alkyloligogycosides and alkylglycosides | Chemistry; Metallurgy | 13 | Expired |
| US6906810B2 | Method and system for allowing an on-line user to selectively customize a document for printing in a single batch process | Physics | 13 | Expired |
| US4102870A | Modified polyurethanes with increased light stability | Chemistry; Metallurgy | 13 | Expired |
| US4287130A | Reacting olefins with ozone in a carboxylic acid medium | Chemistry; Metallurgy | 11 | Expired |
| US5401845A | Asymmetric aryl phosphites | Chemistry; Metallurgy | 11 | Expired |
| US5322871A | Asymmetric aryl phosphites | Chemistry; Metallurgy | 11 | Expired |
| US3956243A | Process for flameproofing organic fibre material | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4847368A | Method of manufacturing alkyloligoglycosides | Chemistry; Metallurgy | 8 | Expired |
| US5149742A | Heat curable adhesives based on polymers having a polybutadiene chain backbone and containing hydroxyl groups | Chemistry; Metallurgy | 7 | Expired |
| US5239076A | N-methylated bis-4-piperidylphosphite | Chemistry; Metallurgy | 7 | Expired |
| US6977312B2 | Phosphor, arsenic and antimony compounds based upon diaryl-anellated bicyclo[2.2.n] parent substances and catalysts containing same | Performing Operations; Transporting | 6 | Expired |
| US4661594A | Certain [(2,2,6,6-tetramethyl-4-piperidyl)amino]-1,3,2-dioxaphosphorinanes useful as stabilizers for protecting resins | Chemistry; Metallurgy | 6 | Expired |
| US4364869A | Process for producing alkyl esters of saturated aliphatic carboxylic acids | Chemistry; Metallurgy | 5 | Expired |
| US4699939A | Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidants | Chemistry; Metallurgy | 5 | Expired |
| US4481147A | Process for preparing alkylesters of saturated aliphatic carboxylic acids | Chemistry; Metallurgy | 4 | Expired |
| US5340855A | N-methylated bis-4-piperidylphosphite | Chemistry; Metallurgy | 4 | Expired |
| US4578367A | Methods for reprocessing cobalt catalysts used in hydrocarboxylation | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4863982A | Isocyanuric acid derivatives | Chemistry; Metallurgy | 3 | Expired |
| US4421692A | Process for producing carboxylic acid alkylester after products extensively free from nitrogenated compounds | Chemistry; Metallurgy | 3 | Expired |
| US4789715A | Process for polymerizing vinyl chloride with polyglycosyl polyol esters | Chemistry; Metallurgy | 3 | Expired |
| US5180800A | Process for the preparation of finely divided, water-swellable polysaccharide graft polymers | Chemistry; Metallurgy | 3 | Expired |
| US4502992A | Process for the continuous production of alkylesters of saturated aliphatic carboxylic acids | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.