Jan Feijen
24Patents
13h-index
42Co-inventors
81Inventor score
Filing activity: Dec 8, 1978 → Aug 10, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6117979A | Process for making a bioprosthetic device and implants produced therefrom | Emerging Cross-Sectional Technologies | 251 | Expired |
| US4925677A | Biodegradable hydrogel matrices for the controlled release of pharmacologically active agents | Human Necessities | 193 | Expired |
| US6172167A | Copoly(ester-amides) and copoly(ester-urethanes) | Chemistry; Metallurgy | 172 | Expired |
| US5041292A | Biodegradable hydrogel matrices for the controlled release of pharmacologically active agents | Human Necessities | 164 | Expired |
| US5134192A | Process for activating a polymer surface for covalent bonding for subsequent coating with heparin or the like | Emerging Cross-Sectional Technologies | 76 | Expired |
| US4526714A | Conjugates of anticoagulant and protein | Human Necessities | 74 | Expired |
| US4356166A | Time-release chemical delivery system | Human Necessities | 67 | Expired |
| US6685957B1 | Preparation of fibrous polymer implant containing bioactive agents using wet spinning technique | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5496557A | Article for the controlled delivery of an active substance, comprising a hollow space fully enclosed by a wall and filled in full or in part with one or more active substances | Human Necessities | 43 | Expired |
| US4965128A | Biodegradable polymer substrates loaded with active substance suitable for the controlled release of the active substance by means of a membrane | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5061750A | Covalent attachment of anticoagulants and the like onto biomaterials | Human Necessities | 30 | Expired |
| US4678671A | Conjugates of anticoagulant and protein | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4634762A | Conjugates of anticoagulant and protein | Chemistry; Metallurgy | 20 | Expired |
| US6838435B1 | Isolated and recombinant antimicrobial peptides thrombocidin-1 (TC-1) and thrombocidin-2(TC-2) or variants thereof | Human Necessities | 8 | Expired |
| US9006337B2 | Method for making a polymer, a polymer article, a biodevice, and cyclic carbonate | Chemistry; Metallurgy | 7 | Active |
| US9951183B2 | Amphiphilic blockcopolymers comprising reduction sensitive biodegradable polyesteramides | Human Necessities | 1 | Active |
| US6835391B2 | Poly (ether ester amide) and poly (ether ester urethane) copolymers | Chemistry; Metallurgy | 0 | Expired |
| US8829069B2 | Method for preparing a degradable polymer network | Chemistry; Metallurgy | 0 | Active |
| US7572838B2 | Method for providing shaped biodegradable and elastomeric structures of (co) polymers of 1,3-trimethylene carbonate (TMC), shaped biodegradable and elastomeric structures, and the use of these structures | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5658967A | Providing a surface with carboxyl groups and surface and product thus provided | Chemistry; Metallurgy | 0 | Expired |
| US10184027B2 | Reduction sensitive biodegradable polyesteramides | Chemistry; Metallurgy | 0 | Active |
| US8546517B2 | Poly(bisoxalamides) | Chemistry; Metallurgy | 0 | Active |
| US9132201B2 | Hydrogels based on polymers of dextran tyramine and tyramine conjugates of natural polymers | Human Necessities | 0 | Active |
| US8492505B2 | Branched biodegradable polymers, a macromonomer, processes for the preparation of same, and their use | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.