Inventor · Rittman, OH, US

Thomas A. Antkowiak

51Patents
21h-index
27Co-inventors
88Inventor score

Filing activity: Jan 25, 1974 → Jun 17, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US5066729A Diene polymers and copolymers terminated by reaction with N-alkyl and N-aryl imines Emerging Cross-Sectional Technologies 116 Expired
US5521309A Tertiary-amino allyl-or xylyl-lithium initiators and method of preparing same Emerging Cross-Sectional Technologies 99 Expired
US5496940A Alkyllithium compounds containing cyclic amines and their use in polymerization Chemistry; Metallurgy 73 Expired
US5574109A Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Emerging Cross-Sectional Technologies 67 Expired
US6897270B2 Continuous process for the production of conjugated diene polymers having narrow molecular weight distribution and products therefrom Chemistry; Metallurgy 66 Expired
US5227431A Diene polymers and copolymers jumped by partial crosslinking and terminated with a substituted imine Emerging Cross-Sectional Technologies 55 Expired
US5932662A Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Emerging Cross-Sectional Technologies 53 Expired
US5153159A Elastomers and products having reduced hysteresis Emerging Cross-Sectional Technologies 51 Expired
US5310798A Diene polymers and copolymers terminated with compounds having multiple-bonded nitrogen atoms and partially crosslinked with polyfunctional reagents Chemistry; Metallurgy 49 Expired
US5491230A Anionic polymerization initiators containing adducts of cyclic secondary amines and conjugated dienes, and products therefrom Chemistry; Metallurgy 48 Expired
US5502131A Method of preparing polymer using allyl-and xylyl-amine containing initiators Emerging Cross-Sectional Technologies 46 Expired
US5153271A Diene polymers and copolymers terminated by reaction with aromatic nitriles Emerging Cross-Sectional Technologies 46 Expired
US5109907A Diene polymers and copolymers terminated by reaction with N-alkyl and N-aryl imines Emerging Cross-Sectional Technologies 43 Expired
US6025450A Amine containing polymers and products therefrom Emerging Cross-Sectional Technologies 36 Expired
US6080835A Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Emerging Cross-Sectional Technologies 36 Expired
US5567815A Teritary amine containing antonic initiators used in preparing polymers and process for the preparation thereof Chemistry; Metallurgy 30 Expired
US5610227A Lithium amino magnesiate polymerization initiators and elastomers having reduced hysteresis Emerging Cross-Sectional Technologies 27 Expired
US5354822A Methods for preparing functionalized polymer and elastomeric compounds having reduced hysteresis Emerging Cross-Sectional Technologies 26 Expired
US5274106A Amino-substituted aryllithium compounds as anionic polymerization initiators Chemistry; Metallurgy 24 Expired
US5268413A Elastomers and products having reduced hysteresis Chemistry; Metallurgy 22 Expired
US5610237A Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Emerging Cross-Sectional Technologies 22 Expired
US3970533A Process for conversion of elastomeric phosphazene Chemistry; Metallurgy 14 Expired
US5210145A Diene polymers and copolymers terminated by reaction with fused-ring polynuclear aromatic compounds Emerging Cross-Sectional Technologies 14 Expired
US5792820A Alkyllithium compounds containing cyclic amines and their use in polymerization Chemistry; Metallurgy 13 Expired
US6349753B1 Aminoalkyllithium compounds containing cyclic amines and polymers therefrom Emerging Cross-Sectional Technologies 12 Expired

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