Patents by Inventor Willem Groenendaal

Willem Groenendaal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090208999
    Abstract: The invention relates to crystalline amoxicillin trihydrate powder having a bulk density higher than 0.45 g/ml. The invention also relates to a process for preparing crystalline amoxicillin trihydrate powder, said process comprising: crystallizing amoxicillin trihydrate from a solution containing dissolved amoxicillin; separating the crystals from said solution; and drying the separated crystals, resulting in crystalline powder having a bulk density higher than 0.45 g/ml.
    Type: Application
    Filed: April 8, 2009
    Publication date: August 20, 2009
    Applicant: DSM IP ASSETS B.V.
    Inventors: Jan Willem Groenendaal, Everardus Johannus Antoinious Maria Leenderts, Thomas Van Der Does
  • Patent number: 7534781
    Abstract: The invention relates to crystalline amoxicillin trihydrate powder having a bulk density higher than 0.45 g/ml. The invention also relates to a process for preparing crystalline amoxicillin trihydrate powder, said process comprising: crystallizing amoxicillin trihydrate from a solution containing dissolved amoxicillin; separating the crystals from said solution; and drying the separated crystals, resulting in crystalline powder having a bulk density higher than 0.45 g/ml.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: May 19, 2009
    Assignee: DSM IP Assets B.V.
    Inventors: Jan Willem Groenendaal, Everardus Johannus Antonius Maria Leenderts, Thomas Van Der Does
  • Patent number: 6428832
    Abstract: The present invention relates to a process for the preparation of a polyunsaturated fatty acid (PUFA)-containing food, such as an infant formula, where a composition comprising a PUFA is added at a late stage of the infant formula preparation process in this way, the PUFA's are minimally exposed to conditions during the process that induce degradation of the PUFA's.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: August 6, 2002
    Assignee: DSM N.V.
    Inventors: Anthonius Cornelis Van Den Burg, Jan Willem Groenendaal
  • Publication number: 20010051204
    Abstract: The present invention relates to a process for the preparation of a polyunsaturated fatty acid(PUFA) -containing food, such as an infant formula, where a composition comprising a PUFA is added at a late stage of the infant formula preparation process. In this way, the PUFAs are minimally exposed to conditions during the process that induce degradation of the PUFAs.
    Type: Application
    Filed: March 18, 1997
    Publication date: December 13, 2001
    Inventors: ANTHONIUS CORNELIS, JAN WILLEM GROENENDAAL
  • Patent number: 6048557
    Abstract: The present invention relates to a process for the preparation of a polyunsaturated fatty acid (PUFA)-containing composition where a PUFA-containing lipid is adsorbed onto a solid carrier, such as a powder. This can be used in a process for preparing an infant formula, such as where the powdered PUFA-containing lipid is added after an emulsion of oil and water phases has been formed.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: April 11, 2000
    Assignee: DSM N.V.
    Inventors: Anthonius Cornelis Van Den Burg, Jan Willem Groenendaal
  • Patent number: 5716654
    Abstract: Dry granular yeast compositions for use in the production of bakery products and beverages. In particular, a dry granular yeast composition having a moisture content of not more than about 8% (w/w) and containing about 0.1 to 8% (w/w) of a bread-improving agent, wherein the dry yeast is present in granular form and said bread-improving agent is a coating on the dry yeast granules in the form of a film or adhered particles.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: February 10, 1998
    Assignee: Gist-brocades, N.V.
    Inventor: Jan Willem Groenendaal
  • Patent number: 4263270
    Abstract: Process for the work-up of hydrogen-sulfide containing gases which are normally subjected to Claus process, reduction, absorption, and desorption, characterized in that a portion of the feed gases by-passes the Claus unit and is processed in a CO.sub.2 -selective secondary absorption-desorption procedure.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: April 21, 1981
    Assignee: Shell Oil Company
    Inventors: Willem Groenendaal, Colin G. Harvey
  • Patent number: 4004885
    Abstract: An apparatus for the removal of particulate matter and sulfur oxides from waste gases is disclosed. The apparatus comprises a vessel for cross-current contacting of the waste gas with a moving bed of acceptor for sulfur oxides, and separate processing chambers for removal of the particulate matter from the loaded acceptor, for the removal of sulfur oxides for the loaded acceptor, and for reactivating the acceptor.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: January 25, 1977
    Assignee: Shell Oil Company
    Inventors: Willem Groenendaal, Friedrich C. Taubert, Jaap E. Naber, Gijsbertus A. Bekker
  • Patent number: 4001386
    Abstract: An improved process is described for reducing the total sulfur content of off-gases from a Claus process by catalytically converting the sulfur compounds contained in the off-gases to hydrogen sulfide and selectively absorbing the hydrogen sulfide with a regenerable polyalkanolamine adsorbent solution; the hydrogen sulfide enriched adsorbent being regenerated and used again for further adsorption of hydrogen sulfide and the hydrogen sulfide-rich gas mixture liberated in regeneration being passed to a Claus process. This improved process is characterized in that the hydrogen sulfide enriched polyalkanolamine solution from adsorption of the reduced Claus off-gases is further enriched in hydrogen sulfide content prior to regeneration by contacting it with a stream which contains hydrogen sulfide at a higher partial pressure than that of the reduced Claus off-gases.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: January 4, 1977
    Assignee: Shell Oil Company
    Inventors: Johannes P. Klein, Swethadrivas R. Setlur, Willem Groenendaal
  • Patent number: 3966879
    Abstract: A process for the removal of particulate matter and sulfur oxides from waste gases is disclosed which comprises cross-current contacting of the waste gas stream with a moving bed of supported, copper-containing acceptor in a first zone, thereby accepting the sulfur oxides and filtering out the particulate matter, removing in subsequent separate zones the particulate matter and the sulfur oxides from the acceptor and, optionally, reactivating the acceptor in a subsequent zone before introducing it back into the first zone for further removal of sulfur oxides and particulate matter. An apparatus suitable for carrying out the process is also described.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: June 29, 1976
    Assignee: Shell Oil Company
    Inventors: Willem Groenendaal, Friedrich C. Taubert, Jaap E. Naber, Gijsbertus A. Bekker
  • Patent number: 3947547
    Abstract: An improved Claus off-gas treating process is disclosed where sulfur dioxide and other convertible sulfur compounds present in the off-gas are catalytically reduced to hydrogen sulfide by mixing said off-gases with the hot gaseous product of the combustion of a carbonaceous fuel with an oxygen-containing gas in a line burner to heat the off-gases to a temperature above 175.degree.C and passing the heated gaseous product together with a hydrogen-containing gas over a reduction catalyst thereby converting substantially all of the sulfur dioxide and other convertible sulfur compounds present to hydrogen sulfide which is subsequently removed with an absorbent or absorbent for hydrogen sulfide.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: March 30, 1976
    Assignee: Shell Oil Company
    Inventors: Willem Groenendaal, Heinz-Gerhard A. Kock, Philippus Loof