Inventor · disambiguated record
Dirk M. Koenhen
Also filed as: KOENHEN DIRK M · KOENHEN DIRK MARINUS · ROESINK HENDRIK DIRK WILLEM
12 granted patents·431 citations·filing 1987–2000
93Inventor score
Top patents by PatentIndex Score
12 records- 0192US5076925AProcess for preparing a microporous membrane and such a membraneX FLOW BV·Filed 1990·Granted Dec 31, 1991·112 cites·16 claims
- 0281US5240862AProcess and device for the separation of a body fluid from particulate materialsFLOR B V X·Filed 1989·Granted Aug 31, 1993·105 cites·14 claims
- 0380US5456843AMicrofiltration and/or ultrafiltration membrane, method of preparation and method of filtration by means of such a membraneX FLOW BV·Filed 1994·Granted Oct 10, 1995·45 cites·20 claims
- 0480US4798847AProcess for the preparation of hydrophilic membranes and such membranesX FLOW BV·Filed 1987·Granted Jan 17, 1989·40 cites·13 claims
- 0572US6787216B1Method for manufacturing multiple channel membranes, multiple channel membranes and the use thereof in separation methodsINGE AG·Filed 2000·Granted Sep 7, 2004·26 cites·16 claims
- 0668US5560828AMethod for the removal of components causing turbidity, from a fluid, by means of microfiltrationX FLOW BV·Filed 1994·Granted Oct 1, 1996·22 cites·15 claims
- 0766US6454943B1Longitudinal reinforced self-supporting capillary membranes and their useSEARCH B V S·Filed 1999·Granted Sep 24, 2002·39 cites·15 claims
- 0842US5207908ASemi-permeable composite membrane and process for manufacturing sameX FLOW BV·Filed 1991·Granted May 4, 1993·12 cites·6 claims
- 0940US6203714B1Device for filtering a liquid and method for disinfecting such a deviceSEPEQ B V·Filed 1999·Granted Mar 20, 2001·18 cites·13 claims
- 1029US5274047ASemipermeable composite membrane, a process for the manufacture thereof, as well as application of such membranes for the separations of components in an organic liquid phase or in the vapor phaseX FLOW BV·Filed 1992·Granted Dec 28, 1993·4 cites·34 claims
- 1128US5338455AProcess for the separation of components in an organic liquid medium and a semi-permeable composite membrane thereforX FLOW BV·Filed 1991·Granted Aug 16, 1994·3 cites·6 claims
- 1228US5169575AMethod for producing a flat porous productX FLOW BV·Filed 1991·Granted Dec 8, 1992·5 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Dirk M. Koenhen 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 →