Inventor · Riehen, CH

Michael Rasberger

58Patents
14h-index
25Co-inventors
84Inventor score

Filing activity: Jun 5, 1974 → May 19, 1998

Most-cited inventions

PatentTitleAreaCited byStatus
US4198334A Substituted malonic acid derivatives and their use as stabilizers Chemistry; Metallurgy 80 Expired
US4233412A Polymeric light stabilizers for plastics Chemistry; Metallurgy 55 Expired
US3993655A Stabilizers for synthetic polymers Chemistry; Metallurgy 35 Expired
US6046263A Liquid antioxidants as stabilizers Chemistry; Metallurgy 33 Expired
US4259492A Dioxaphosphepines Chemistry; Metallurgy 29 Expired
US4692258A Tetrahydroquinolines as antioxidants for lubricants Chemistry; Metallurgy 28 Expired
US4161592A Piperidinyl-s-triazines Chemistry; Metallurgy 28 Expired
US3966711A 4-Alkyl-1,4-diaza-5-oxo-cycloheptanes and their 1-oxyls Chemistry; Metallurgy 27 Expired
US5523007A Stabilized diesel engine oil Mechanical Engineering; Lighting; Heating 21 Expired
US3971757A 3-Alkyl-4-oxo-imidazolidines and their 1-oxyls Chemistry; Metallurgy 21 Expired
US4233410A Polymeric light stabilizers for plastics Chemistry; Metallurgy 17 Expired
US4268593A Recording material for color photography Physics 15 Expired
US4374742A Novel lubricant additives Chemistry; Metallurgy 14 Expired
US4232131A Polymeric light stabilizers for plastics Chemistry; Metallurgy 14 Expired
US4321218A Phosphite stabilizer Chemistry; Metallurgy 14 Expired
US4185006A Cyclic phosphonite stabilizers Chemistry; Metallurgy 13 Expired
US4297492A Phenolic-1,3,5-triazines Chemistry; Metallurgy 12 Expired
US4238613A Polyalkylpiperidine derivatives Chemistry; Metallurgy 11 Expired
US4226999A Piperidyl esters of phenolalkylene carboxylic acids Chemistry; Metallurgy 10 Expired
US4383950A Phosphite stabilizers Chemistry; Metallurgy 10 Expired
US4148783A Hydroxybenzylmalonic acid derivatives Chemistry; Metallurgy 10 Expired
US4148784A Phenol stabilizers Chemistry; Metallurgy 10 Expired
US4276232A Phosphorus stabilizers Chemistry; Metallurgy 10 Expired
US4260689A Polymeric light stabilizers for plastics Chemistry; Metallurgy 9 Expired
US4250268A Polysilylesters having a polyalkylpiperidine as part of the polymer useful as light stabilizers for plastics Chemistry; Metallurgy 9 Expired

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