Inventor · disambiguated record
Fritz Wilhelm
Also filed as: WILHELM FRITZ
20 granted patents·2 pending applications·364 citations·filing 1975–2009
95Inventor score
Top patents by PatentIndex Score
22 records- 0196US6277947B1Process of producing polytrimethylene terephthalate (PTT)SHELL OIL CO·Filed 2000·Granted Aug 21, 2001·75 cites·19 claims
- 0295US4680376AProcess for the continuous production of high-molecular polybutyleneterephthalateDAVY MCKEE AG·Filed 1986·Granted Jul 14, 1987·97 cites·7 claims
- 0393US6326456B2Process of producing polytrimethylene terephthalate (PTT)SHELL OIL CO·Filed 2001·Granted Dec 4, 2001·41 cites·6 claims
- 0480US7550116B2Method for producing polyesters and a disk ring reactor for the methodLURGI ZIMMER GMBH·Filed 2005·Granted Jun 23, 2009·7 cites·20 claims
- 0574US7084234B2Method and device for producing polyesters, copolyesters and polycarbonatesZIMMER AG·Filed 2003·Granted Aug 1, 2006·14 cites·19 claims
- 0674US6512080B2Process of producing polytrimethylene terephthalate (PTT)SHELL OIL CO·Filed 2001·Granted Jan 28, 2003·12 cites·19 claims
- 0774US4499261AProcess for the continuous production of polybutylene terephthalate of high molecular weightDAVY MCKEE AG·Filed 1984·Granted Feb 12, 1985·23 cites·7 claims
- 0871US5055273AApparatus for processing high viscosity materialsDAVY MCKEE AG·Filed 1988·Granted Oct 8, 1991·42 cites·22 claims
- 0969US6509438B2Optimum dipropylene glycol content polytrimethylene terephthalate compositionsSHELL OIL CO·Filed 2001·Granted Jan 21, 2003·8 cites·5 claims
- 1063US7244806B2Method and device for the continuous production of polyestersZIMMER AG·Filed 2003·Granted Jul 17, 2007·6 cites·25 claims
- 1162US6967235B2Method for the production of polybutylene terephthalateZIMMER AG·Filed 2002·Granted Nov 22, 2005·5 cites·11 claims
- 1258US7153927B2Process of continuously producing polyesters or copolyestersZIMMER AG·Filed 2001·Granted Dec 26, 2006·4 cites·12 claims
- 1357US8017717B2Method of producing polyestersLURGI ZIMMER GMBH·Filed 2009·Granted Sep 13, 2011·0 cites·9 claims
- 1455US6800718B1Process for producing polytrimethylene terephthalate (PTT)ZIMMER AG·Filed 2000·Granted Oct 5, 2004·3 cites·19 claims
- 1554US6838543B2Method for producing polycarbonatesZIMMER AG·Filed 2001·Granted Jan 4, 2005·3 cites·6 claims
- 1650US5576414AProcess for generating a vacuum in production of polycarbonateZIMMER AG·Filed 1995·Granted Nov 19, 1996·12 cites·8 claims
- 1749US5563209AProcess for the reduction of carboxyl-end groups of linear polyestersZIMMER AG·Filed 1995·Granted Oct 8, 1996·10 cites·7 claims
- 1845US8143367B2Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device thereforWILHELM FRITZ·Filed 2007·Granted Mar 27, 2012·0 cites·14 claims
- 1942US2006030727A1Method and device for the continuous pre-polycondensation of esterification/transesterification productsZIMMER AG·Filed 2005·Application pending·0 cites
- 2037US7850926B2Process of discontinuous polycondensation and stirring reactor thereofLURGI ZIMMER GMBH·Filed 2001·Granted Dec 14, 2010·0 cites·2 claims
- 2137US2009192285A1Method and device for the production of polyesters and copolyestersWILHELM FRITZ·Filed 2004·Application pending·0 cites
- 2223US4128453AProcess and apparatus for removing evaporable components from polyamide meltsZIMMER AG·Filed 1975·Granted Dec 5, 1978·2 cites·3 claims
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