Inventor · Lawrence, KS, US

Joseph A. Fix

21Patents
14h-index
16Co-inventors
78Inventor score

Filing activity: Dec 30, 1981 → Jul 16, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US6419954B1 Tablets and methods for modified release of hydrophilic and other active agents Human Necessities 235 Expired
US4440740A .alpha.-Keto aldehydes as enhancing agents of gastro-intestinal drug absorption Human Necessities 44 Expired
US6465009B1 Water soluble polymer-based rapidly dissolving tablets and production processes thereof Human Necessities 37 Expired
US4537772A Enhancing absorption of drugs from gastrointestinal tract using acylcarnitines Emerging Cross-Sectional Technologies 31 Expired
US4692441A Chorine esters as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal cavities Emerging Cross-Sectional Technologies 24 Expired
US4425337A Adjuvants for rectal delivery of drug Human Necessities 22 Expired
US4729989A Enhancement of absorption of drugs from gastrointestinal tract using choline ester salts Emerging Cross-Sectional Technologies 21 Expired
US4822773A Enhancement of absorption of drugs from gastrointestinal tract using choline ester salts Emerging Cross-Sectional Technologies 21 Expired
US4847298A Acylcarnitines as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal compartments Human Necessities 20 Expired
US4731360A Acylcarnitines as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal compartments Human Necessities 20 Expired
US4963556A Choline esters as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal cavities Human Necessities 18 Expired
US4835138A Choline esters as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal cavities Emerging Cross-Sectional Technologies 17 Expired
US4749694A Novel lysine esters used as absorption Human Necessities 15 Expired
US4963525A Acylcarnitines as absorption-enhancing agents for drug delivery through mucous membranes of the nasal, buccal, sublingual and vaginal compartments Human Necessities 14 Expired
US4973579A Enhancment of absorption of drugs from gastrointestinal tract using choline ester salts Human Necessities 12 Expired
US6413546B1 Tablets incorporating isoflavone plant extracts and methods of manufacturing them Human Necessities 8 Expired
US6669956B2 Tablets incorporating isoflavone plant extracts and methods of manufacturing them Human Necessities 4 Expired
US9675585B1 Extended release pharmaceutical formulations Human Necessities 2 Active
US11419868B2 Low dose product and method for treating diarrhea Human Necessities 0 Active
US9687475B1 Extended release pharmaceutical formulations with controlled impurity levels Human Necessities 0 Active
US10010529B2 Extended release pharmaceutical formulations with controlled impurity levels Human Necessities 0 Active

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