John C. Hubbs
26Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Feb 17, 1976 → Apr 16, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5563239A | Composition and process for the production of poly(3-hydroxyalkanoates) | Chemistry; Metallurgy | 99 | Expired |
| US4992552A | Process for preparation of amino acids | Chemistry; Metallurgy | 41 | Expired |
| US5281691A | Poly(3-hydroxyalkanoates) | Chemistry; Metallurgy | 38 | Expired |
| US5144073A | Process for preparation of dipeptides | Chemistry; Metallurgy | 38 | Expired |
| US4839344A | Polypeptide compounds having growth hormone releasing activity | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4880778A | Combinations having synergistic growth hormone releasing activity and methods for use thereof | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5486505A | Polypeptide compounds having growth hormone releasing activity | Human Necessities | 21 | Expired |
| US5625029A | Biodegradable poly (3-Hydroxyalkanoate) compositions and blends | Chemistry; Metallurgy | 21 | Expired |
| US5420335A | Parenteral nutrients based on watersoluble glycerol bisacetoacetates | Human Necessities | 18 | Expired |
| US6670505B1 | Process for the recovery of organic acids from aqueous solutions | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4045735A | Apparatus for testing electronic devices having a high density array of pin leads | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5321118A | 1-acetoacetamido-2,3-propane diol monomer and polyesters prerpared therefrom | Chemistry; Metallurgy | 11 | Expired |
| US5391708A | Poly(3-hydroxyalkanoates) | Chemistry; Metallurgy | 11 | Expired |
| US5552515A | Process for the production of poly(3-hydroxyalkanoates) | Chemistry; Metallurgy | 10 | Expired |
| US5519161A | Nutritive glycerol esters of .beta.-acyloxy butyrates | Chemistry; Metallurgy | 8 | Expired |
| US5817490A | Enzymatic process for the manufacture of ascorbic acid 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5322931A | Process for synthesizing peptides - fragment condensation | Chemistry; Metallurgy | 6 | Expired |
| US5534494A | Polypeptide compounds having growth hormone releasing activity | Human Necessities | 5 | Expired |
| US6552217B2 | Process for the preparation of alkyl 1-methylcyclopropanecarboxylate | Chemistry; Metallurgy | 4 | Expired |
| US6022719A | Enzymatic process for the manufacture of ascorbic acid, 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6610878B1 | Poly(3-cyclopropyl-3-hydroxypropionate) and processes for its preparation and derivatives thereof | Chemistry; Metallurgy | 1 | Expired |
| US4745303A | DC-DC impedance transformer charge pump | Physics | 1 | Expired |
| US5214145A | Trisubstituted piperazin-2,5-diones | Chemistry; Metallurgy | 0 | Expired |
| US6136575A | Enzymatic process for the manufacture of ascorbic acid, 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6271006A | Enzymatic process for the manufacture of ascorbic acid, 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.