Inventor · West Chester, PA, US

Robert L. Webb

21Patents
3h-index
18Co-inventors
60Inventor score

Filing activity: May 2, 1974 → Jun 7, 1995

Most-cited inventions

PatentTitleAreaCited byStatus
US4025831A Brushless direct current motor Electricity 15 Expired
US3939275A Methods and compositions for increasing growth rate and feed efficiency of animals Human Necessities 6 Expired
US4215217A Process for preparing 4-substituted imidazole compounds Chemistry; Metallurgy 4 Expired
US4119781A Process for preparing 4-substituted imidazole compounds Chemistry; Metallurgy 3 Expired
US4166061A Use of cyclic esters to prepare 2,3-dichloro-4-(2-thenoyl)phenoxyacetic acid Chemistry; Metallurgy 3 Expired
US4049669A Process for preparing 5-(alkoxy- and aminoethyl thio)methylthiazole compounds Chemistry; Metallurgy 3 Expired
US4104472A Imidazolemethylphosphonium salts Chemistry; Metallurgy 2 Expired
US4321399A Preparation of 2-thiophenecarbonyl chloride Chemistry; Metallurgy 2 Expired
US4139708A Intermediates and processes useful for preparing medicinal agents imidazolemethylphosphonium salts Chemistry; Metallurgy 2 Expired
US3966958A Methods and compositions for increasing feed intake of animals Human Necessities 1 Expired
US4272440A Intermediates for preparing hydroxyphenylpyridazinones Chemistry; Metallurgy 1 Expired
US4267337A Imidazolemethylphosphonium salts Chemistry; Metallurgy 1 Expired
US4057585A Method of preparing 2,3-dichloroanisole Chemistry; Metallurgy 1 Expired
US4321393A Method for preparing 2-cyanamidobenzimidazoles or 2-cyanamidobenzoxazoles Chemistry; Metallurgy 0 Expired
US5561124A 17-.alpha.-acyl steroids which inhibit 5-.alpha.-reductase Chemistry; Metallurgy 0 Expired
US5596109A N-t-butyl-androst-3,5-diene-17.beta.-carboxamide-3-carboxylic acid polymorph A Chemistry; Metallurgy 0 Expired
US4285878A N-Phenyl-N'-cyano-O-phenylisoureas Chemistry; Metallurgy 0 Expired
USRE28691E Methods and compositions for increasing feed intake of animals using tertiary alcohols General 0 Expired
US4163858A Process for preparing new imidazolemethylphosphonium salts Chemistry; Metallurgy 0 Expired
US5859266A """N-T-butyl-androst-3-5-diene-17 .beta.-carboxamide-3-carboxylic"" acid polymorph A" Chemistry; Metallurgy 0 Expired
US4092352A 2,3-Dichloro-4-hydroxy-benzoic acid and process for preparation thereof Chemistry; Metallurgy 0 Expired

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