Inventor · disambiguated record
Nicolaas F. Haasen
Also filed as: HAASEN NICOLAAS F
12 granted patents·178 citations·filing 1977–2002
91Inventor score
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12 records- 0190US5700934AProcess for the preparation of epsilon-caprolactam and epsilon-caprolactam precursorsDSM NV·Filed 1996·Granted Dec 23, 1997·63 cites·14 claims
- 0284US4457807AProcess for the purification of ε-caprolactamSTAMICARBON·Filed 1982·Granted Jul 3, 1984·24 cites·6 claims
- 0383US5495041AProcess for the preparation of a pentenoate esterDSM N W·Filed 1995·Granted Feb 27, 1996·33 cites·9 claims
- 0482US4563308ARecovery of caprolactam from caprolactam-containing distillation residueSTAMICARBON·Filed 1984·Granted Jan 7, 1986·16 cites·14 claims
- 0575US6323341B1Process for the continuous purification of crude ε-caprolactamDSM NV·Filed 2000·Granted Nov 27, 2001·7 cites·8 claims
- 0668US6392037B1Process for the preparation of ε-caprolactamDSM NV·Filed 2001·Granted May 21, 2002·4 cites·9 claims
- 0762US5717089AProcess for the preparation of E-caprolactamDSM NV·Filed 1996·Granted Feb 10, 1998·10 cites·15 claims
- 0851US6828413B2Process for the preparation of a polyamideDSM NV·Filed 2002·Granted Dec 7, 2004·1 cites·20 claims
- 0948US4122153ARecycling method for the preparation and processing of a hydroxyl ammonium salt solutionSTAMICARBON·Filed 1977·Granted Oct 24, 1978·7 cites·2 claims
- 1045US5585524AMethod for the preparation of an aldehydeDSM NV·Filed 1995·Granted Dec 17, 1996·11 cites·25 claims
- 1141US6706153B2Process for the separation of a ketoxime or aldoxime from an amideDSM NV·Filed 1999·Granted Mar 16, 2004·2 cites·26 claims
- 1237US7615137B2Process for recovering caprolactam from aqueous caprolactam product using in situ prepared alkali amino caproateDSM IP ASSETS BV·Filed 2002·Granted Nov 10, 2009·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →