Inventor · Felton, GB

John A. Edwards

25Patents
9h-index
9Co-inventors
68Inventor score

Filing activity: Nov 21, 1973 → Jun 11, 2002

Most-cited inventions

PatentTitleAreaCited byStatus
US4263289A Thio etianic acid derivatives Chemistry; Metallurgy 35 Expired
US6325144A Inflatable packer with feed-thru conduits Fixed Constructions 35 Expired
US4188385A Thioetianic acid derivatives Chemistry; Metallurgy 33 Expired
US4187301A 17 Beta-thiocarboxylic acid esters of 6 alpha, 6 beta-difluoro-3-oxoandrost-4-enes Chemistry; Metallurgy 33 Expired
US4310466A Thio etianic acid derivatives Chemistry; Metallurgy 28 Expired
US3935209A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 16 Expired
US4178457A (dl)-16-Phenoxy- and 16-substituted phenoxy-9-keto prostatrienoic acid derivatives and processes for the production thereof Emerging Cross-Sectional Technologies 13 Expired
US3965113A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 11 Expired
US4002640A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 9 Expired
US4005202A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 7 Expired
US7198314B1 Passenger cabin extension member Performing Operations; Transporting 6 Expired
US6249980A Can opener Performing Operations; Transporting 5 Expired
US4072696A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 4 Expired
USD423313S Can opener General 3 Expired
US3993768A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 2 Expired
US4618696A 9-oxo-15.alpha.-hydroxy-16-phenoxy and 16-substituted phenoxy 17,18,19,20-tetranorprosta-4,5,13,(E)-trienoates Human Necessities 2 Expired
US3982010A Thiazole cardiovascular agents Chemistry; Metallurgy 1 Expired
US4011320A 7(8)-Substituted triazinobenzimidazoles and anthelmintic compositions and method Chemistry; Metallurgy 1 Expired
US4198404A 6 Alpha, 6 beta-difluoro-etianic acid derivatives Chemistry; Metallurgy 1 Expired
US4089865A Certain thiazole compounds Human Necessities 1 Expired
US3993769A 1,5(6)-Disubstituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 0 Expired
US4001421A Thiazole cardiovascular agents Human Necessities 0 Expired
US4080461A 5(6)-Benzene ring substituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 0 Expired
US3969412A 16,17-Seco-delta 4,9(10) and -delta 4,9(10),11 steroids Chemistry; Metallurgy 0 Expired
US4031234A 1,5(6)-Disubstituted benzimidazole-2-carbamate derivatives having anthelmintic activity Chemistry; Metallurgy 0 Expired

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