Inventor · disambiguated record
Jan Feijen
Also filed as: FEIJEN JAN
24 granted patents·6 pending applications·2,005 citations·filing 1978–2015
97Inventor score
Top patents by PatentIndex Score
30 records- 0197US5041292ABiodegradable hydrogel matrices for the controlled release of pharmacologically active agentsTHERATECH INC·Filed 1990·Granted Aug 20, 1991·284 cites·17 claims
- 0297US4925677ABiodegradable hydrogel matrices for the controlled release of pharmacologically active agentsTHERATECH INC·Filed 1988·Granted May 15, 1990·287 cites·31 claims
- 0395US6685957B1Preparation of fibrous polymer implant containing bioactive agents using wet spinning techniqueCHIENNA BV·Filed 2000·Granted Feb 3, 2004·91 cites·7 claims
- 0495US6172167B1Copoly(ester-amides) and copoly(ester-urethanes)UNIV TWENTE·Filed 1997·Granted Jan 9, 2001·309 cites·23 claims
- 0595US6117979AProcess for making a bioprosthetic device and implants produced therefromMEDTRONIC INC·Filed 1997·Granted Sep 12, 2000·316 cites·28 claims
- 0695US5134192AProcess for activating a polymer surface for covalent bonding for subsequent coating with heparin or the likeCORDIS CORP·Filed 1991·Granted Jul 28, 1992·136 cites·23 claims
- 0793US4356166ATime-release chemical delivery systemUNIV UTAH·Filed 1978·Granted Oct 26, 1982·171 cites·10 claims
- 0890US5496557AArticle 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 substancesAKZO NV·Filed 1991·Granted Mar 5, 1996·92 cites·19 claims
- 0989US4678671AConjugates of anticoagulant and proteinCORDIS EUROP·Filed 1986·Granted Jul 7, 1987·46 cites·2 claims
- 1084US4526714AConjugates of anticoagulant and proteinCORDIS EUROP·Filed 1982·Granted Jul 2, 1985·115 cites·16 claims
- 1183US9006337B2Method for making a polymer, a polymer article, a biodevice, and cyclic carbonateZHONG ZHIYUAN·Filed 2011·Granted Apr 14, 2015·7 cites·20 claims
- 1282US4965128ABiodegradable polymer substrates loaded with active substance suitable for the controlled release of the active substance by means of a membraneTNO·Filed 1988·Granted Oct 23, 1990·54 cites·10 claims
- 1382US4634762AConjugates of anticoagulant and proteinSENTRON V O F·Filed 1985·Granted Jan 6, 1987·32 cites·24 claims
- 1476US9951183B2Amphiphilic blockcopolymers comprising reduction sensitive biodegradable polyesteramidesDSM IP ASSETS BV·Filed 2015·Granted Apr 24, 2018·1 cites·20 claims
- 1568US9132201B2Hydrogels based on polymers of dextran tyramine and tyramine conjugates of natural polymersKARPERIEN HERMANUS BERNARDUS JOHANNES·Filed 2010·Granted Sep 15, 2015·3 cites·21 claims
- 1658US8829069B2Method for preparing a degradable polymer networkGRIJPMA DIRK WYBE·Filed 2010·Granted Sep 9, 2014·1 cites·20 claims
- 1758US6838435B1Isolated and recombinant antimicrobial peptides thrombocidin-1 (TC-1) and thrombocidin-2(TC-2) or variants thereofAZ UNIV AMSTERDAM·Filed 1998·Granted Jan 4, 2005·22 cites·8 claims
- 1857US2004086544A1Polymers with bioactive agentsCHIENNA BV·Filed 2003·Application pending·0 cites
- 1956US10184027B2Reduction sensitive biodegradable polyesteramidesDSM IP ASSETS BV·Filed 2015·Granted Jan 22, 2019·0 cites·19 claims
- 2050US6835391B2Poly (ether ester amide) and poly (ether ester urethane) copolymersCHIENNA BV·Filed 2002·Granted Dec 28, 2004·2 cites·17 claims
- 2150US5061750ACovalent attachment of anticoagulants and the like onto biomaterialsCORDIS EUROP·Filed 1990·Granted Oct 29, 1991·36 cites·30 claims
- 2247US2010144900A1Stereo Photo Hydrofel, a Process of Making Said Stereo Photo Hydrogel, Polymers for Use in Making Such Hydrogel and a Pharmaceutical Comprising Said PolymersHIEMSTRA CHRISTINE·Filed 2007·Application pending·0 cites
- 2344US2012322953A1Biocompatible polymer networksGRIJPMA DIRK WYBE·Filed 2012·Application pending·0 cites
- 2440US8492505B2Branched biodegradable polymers, a macromonomer, processes for the preparation of same, and their useFEIJEN JAN·Filed 2006·Granted Jul 23, 2013·0 cites·27 claims
- 2538US8546517B2Poly(bisoxalamides)BROOS RENE·Filed 2010·Granted Oct 1, 2013·0 cites·4 claims
- 2637US2012301441A1Dextran-hyaluronic acid based hydrogelsKARPERIEN HERMANUS BERNARDUS JOHANNES·Filed 2010·Application pending·0 cites
- 2733US2005147686A1Method for preparing a porous polymer structureFiled 2003·Application pending·0 cites
- 2833US2008267901A1Biocompatible Polymer NetworksGRIJPMA DIRK WYBE·Filed 2003·Application pending·0 cites
- 2932US7572838B2Method 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 structuresUNIV TWENTE·Filed 2003·Granted Aug 11, 2009·0 cites·21 claims
- 3030US5658967AProviding a surface with carboxyl groups and surface and product thus providedCORDIS CORP·Filed 1995·Granted Aug 19, 1997·0 cites·26 claims
Join the waitlist — get patent alerts
Get an alert when Jan Feijen files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →