Johan W. Scheeren has been granted 11 US patents while listed as an inventor at Pharmachemie B.V. . The first was granted in 1992 and the most recent in February 2002. Johan W. Scheeren ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Johan W. Scheeren in Weesp, NL.
Patents per Year Patents granted per year, 1992 to 2002 Bar chart with a peak of 3 patents in 1992. peak 3 1992: 3 patents 1992 1993: 1 patents 1993 1994: 2 patents 1994 1998: 2 patents 1998 1999: 2 patents 1999 2002: 1 patents 2002 Issued Patents All Time
Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date
6344571 Water soluble analogs and prodrugs of paclitaxel Peter Hermanus Gerardus Wiegerinck , Duncan Sperling , Lesly Braamer , Eric Wilhelmus Petrus Damen , Dick De Vos 2002-02-05
5874550 Process for preparing epirubicin or acid addition salts thereof from daunorubicin Marcel van der Rijst , Dick De Vos 1999-02-23
5874595 Method for the preparation of baccatin III and derivatives thereof from 10-deacetylbaccatin III Eric Wilhelmus Petrus Damen , Dick De Vos 1999-02-23
5760072 Paclitaxel prodrugs, method for preparation as well as their use in selective chemotherapy Hendricus Bartholomeus Andreas De Bont , Ruben Gerardus George Leenders , Hidde J. Haisma , Dick De Vos 1998-06-02
5710135 Anthracycline prodrugs, method for preparation as well as their use in selective chemotherapy Ruben Gerardus George Leenders , Eric Wilhelmus Petrus Damen , Hidde J. Haisma , Pieter H. J. Houba , Dick De Vos 1998-01-20
5348949 Method of preparing N-oxo-tetrahydro-.beta.-carbolines Peter H. H. Hermkens , Jan Herman van Maarseveen , Cornelis G. Kruse 1994-09-20
5294701 Anthracycline compounds and intermediates Joannes F. M. de Bie , Dirk De Vos 1994-03-15
5183913 Cyclic triketone compounds and trimethylsilyoxy butadiene compounds and their use in the preparation of daunomycinone derivatives Joannes F. Martinus De Bie , Dirk De Vos 1993-02-02
5106840 Method of preparing n-oxo-tetrahydro-beta-carbolines Peter H. H. Hermkens , Jan Herman van Maarseveen , Cornelis G. Kruse 1992-04-21
5097051 Cyclic triketone compounds and trimethylsilyloxy butadiene compounds and their use in the preparation of daunomycinone derivatives Joannes F. M. DeBie , Dirk DEVOS 1992-03-17
5079349 Trimethylsilyl acetylene compounds, their preparation and their use in the preparation of daunomycinone derivatives Joannes F. M. de Bie , Dirk De Vos 1992-01-07