JG

Johannes de Graauw

TD Technische Universiteit Delft: 3 patents #17 of 311Top 6%
KO Kemira Growhow Oyj: 1 patents #4 of 19Top 25%
NB Niro Process Technology B.V.: 1 patents #5 of 9Top 60%
📍 Zoetermeer, NL: #23 of 196 inventorsTop 15%
Overall (All Time): #1,242,240 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7678237 Heat integrated distillation column Maarten Jan Steenbakker, Arie De Rijke, Zarko Olujic, Pieter Johannes Jansens 2010-03-16
7127913 Crystallisation of materials from aqueous solutions Geert-Jan Witkamp, Johannes Pieter Vrijenhoef, Frank van der Ham 2006-10-31
6890441 Hydraulic annular washing column, and process for separating solids from a suspension Pieter Johannes Jansens 2005-05-10
6514475 Process for the production of sodium carbonate anhydrate Harald Oosterhof, Gerda Maria Van Rosmalen, Geert-Jan Witkamp 2003-02-04