Patents by Inventor Willem Van Vliet

Willem Van Vliet 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: 20150121567
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-158 RZ, which may exhibit a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1 to B1:31 and CA-I to CA-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, root aphids (Pemphigus bursarius), as well as having a medium head size, large outer leaves, and moderately glossy leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 45-158 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-158 RZ.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Maria Helena ROOSENBOOM-KOOIJMAN, Willem VAN VLIET, Floor Cathleen VAN MALLAND-DEN OTTER
  • Publication number: 20150121563
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-101 RZ, which may exhibit a combination of traits including resistance to downy mildew (Bremia lactucae) races Bl:1 to Bl:31 and CA-I to CA-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV), as well as having a medium head size, large outer leaves, and dull to moderately glossy leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 45-101 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-101 RZ.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Maria Helena ROOSENBOOM-KOOIJMAN, Willem VAN VLIET, Floor Cathleen VAN MALLAND-DEN OTTER
  • Publication number: 20150121566
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-189 RZ, which may exhibit a combination of traits including resistance to downy mildew (Bremia lactucae) races Bl:1 to Bl:31 and CA-I to CA-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, root aphids (Pemphigus bursarius), as well as having a medium head size, large outer leaves, and moderately glossy leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 45-189 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-189 RZ.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Maria Helena ROOSENBOOM-KOOIJMAN, Willem VAN VLIET, Floor Cathleen VAN MALLAND-DEN OTTER
  • Publication number: 20140283196
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-125 RZ, which may exhibit a combination traits including resistance to downy mildew (Bremia lactucae) races Bl:1-28, Ca-I to Ca-VIII, and strain USA927, resistance to currant-lettuce aphid (Nasonovia ribisnigri), moderately glossy leaves, and a medium head size. The present invention also relates to a Lactuca sativa plant produced by growing the 45-125 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-125 RZ.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
    Inventors: Maria Helena Roosenboom-Kooijman, Johannes Petrus Antonius Jansen, Willem van Vliet
  • Publication number: 20140272086
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-149 RZ, which exhibits resistance to downy mildew (Bremia lactucae) races Bl:1-28 Ca-I to Ca-VIII, and strains F837 and USA927, resistance to currant-lettuce aphid (Nasonovia ribisnigri), moderately glossy leaves, and a medium head size. The present invention also relates to a Lactuca sativa plant produced by growing the 45-149 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-149 RZ.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
    Inventors: Maria Helena Roosenboom-Kooijman, Johannes Petrus Antonius Jansen, Willem van Vliet
  • Publication number: 20140272084
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-125 RZ, which exhibits resistance to downy mildew (Bremia lactucae) races Bl:1-28 Ca-I to Ca-VIII, and strain USA927, resistance to currant-lettuce aphid (Nasonovia ribisnigri), moderately glossy leaves, and a medium head size. The present invention also relates to a Lactuca sativa plant produced by growing the 45-125 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-125 RZ.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
    Inventors: Maria Helena Roosenboom-Kooijman, Johannes Petrus Antonius Jansen, Willem van Vliet
  • Publication number: 20140141148
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-171 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1 to B1:28, CA-I, CA-IIA, CA-IIB, CA-III, CA-IV, CA-V, CA-VI, CA-VII, CA-VIII, currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV) race LMV:1, and root aphids (Pemphigus bursarius), as well as very slow bolting. The present invention also relates to a Lactuca sativa plant produced by growing the 45-171 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-171 RZ.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
    Inventors: Maria Helena Roosenboom-Kooijman, Johannes Petrus Antonius Jansen, Willem van Vliet
  • Publication number: 20130283405
    Abstract: The invention relates to a method for testing a plant or plant part for exhibiting a reduced or absent wound-induced surface discoloration as compared to a control plant or plant part, which method comprises providing a plant or plant part that is obtained from a plant population that shows genetic variation, in particular a gene bank; optionally creating a wound surface on the plant or plant part; incubating the plant or plant part or the wound surfaces created thereon to allow for discoloration to occur therein or thereon; observing the discoloration in or on the plants or plant parts; comparing the observed discoloration with the discoloration that is observed in the control plant or plant part to assess whether the plant or plant part shows no discoloration or a discoloration that is reduced as compared to the control plant or plant part; and identifying a plant or plant part that shows no discoloration or a discoloration that is reduced as compared to the control plant or plant part as a plant that harbo
    Type: Application
    Filed: March 10, 2013
    Publication date: October 24, 2013
    Applicant: Rijk Zwaan Zaadteelt En Zaadhandel B.V.
    Inventors: Willem Van Vliet, Cornelis Maria Petrus Van Dun, Johannes Wilhelmus Schut
  • Publication number: 20130177693
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-32 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races Bl:1 to Bl:18 and CA-I, CA-IIA, CA-IIB, CAM, CA-IV, CA-V, CA-VI, CA-VII, CA-VIII, and resistance to currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, as well as a medium-sized head and slow to very slow bolting. The present invention also relates to a Lactuca sativa plant produced by growing the 45-32 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-32 RZ.
    Type: Application
    Filed: December 22, 2012
    Publication date: July 11, 2013
    Applicant: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
    Inventors: Maria Helena Roosenboom-Kooijman, Johannes Petrus Antonius Jansen, Willem van Vliet
  • Publication number: 20130171323
    Abstract: The present invention relates to a Lactuca sativa seed designated 45-21 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races Bi:1 to Bl:28 and CA-I to CA-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, very slow bolting, moderately to deeply incised margins of the mature leaves and a large head size. The present invention also relates to a Lactuca sativa plant produced by growing the 45-21 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-21 RZ.
    Type: Application
    Filed: December 22, 2012
    Publication date: July 4, 2013
    Inventors: Johannes Petrus Antonius Jansen, Maria Helena Roosenboom-Kooijman, Willem van Vliet
  • Publication number: 20120291151
    Abstract: The present invention relates to a Lactuca sativa var. longifolia Lam. seed designated as 41-101 RZ, which has leaves with a hollow main vein, broad base leaves, and exhibits resistance against downy mildew (Bremia lactucae Regel.), and currant-lettuce aphid (Nasonovia ribisnigri). The present invention also relates to a Lactuca sativa var. longifolia Lam. plant produced by growing the “41-101 RZ” seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-101 RZ.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Inventors: Johannes Petrus Antonius Jansen, Maria Helena Roosenboom-Kooijmans, Willem Van Vliet
  • Patent number: 7078002
    Abstract: The invention relates to a mixing device for mixing fluids in a multiple bed downflow reactor comprising: (i) a substantially horizontal collection tray; (ii) a swirl chamber for mixing liquid arranged below the collection tray, having an upper end part that is in direct fluid communication with the upper surface of the collection tray and an outlet opening at its lower end, wherein the swirl chamber has a length that is at least 0.35 times its inner diameter; and (iii) a substantially horizontal distribution tray located below the swirl chamber, which distribution tray is provided with a plurality of openings or downcomers for downward flow of liquid and gas. The invention further relates to a multiple bed downflow reactor comprising such a mixing device and to the use of such a reactor in hydrocarbon processing.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: July 18, 2006
    Assignee: Shell Oil Company
    Inventors: Willem Van Vliet, Maria Den Hartog-Snoeij, legal representative, Arie Pieter Den Hartog, deceased
  • Publication number: 20040037759
    Abstract: The invention relates to a mixing device (5) for mixing fluids in a multiple bed downflow reactor comprising: (i) a substantially horizontal collection tray (6); (ii) a swirl chamber (7) for mixing liquid arranged below the collection tray (6), having an upper end part that is in direct fluid communication with the upper surface (9) of the collection tray (6) and an outlet opening (10) at its lower end, wherein the swirl chamber (7) has a length that is at least 0.35 times its inner diameter; and (iii) a substantially horizontal distribution tray (13) located below the swirl chamber (7), which distribution tray (13) is provided with a plurality of openings or downcomers (14) for downward flow of liquid and gas. The invention further relates to a multiple bed downflow reactor comprising such a mixing device and to the use of such a reactor in hydrocarbon processing.
    Type: Application
    Filed: June 10, 2003
    Publication date: February 26, 2004
    Inventors: Willem Van Vliet, Arie Pieter Den Hartog, Maria Den hartog-Snoeij
  • Patent number: 5635145
    Abstract: Multi-bed downflow reactor for the catalytic conversion of a liquid and/or a gas including a chamber arranged in between adjacent catalyst beds, which chamber includes a) at least one device for injecting an additional liquid and/or gas for controlling the temperature in the reactor, b) a collecting tray for receiving liquid, c) a compartment for receiving gas, d) a mixing zone for mixing liquid and gas, and e) a distribution tray comprising passages allowing liquid and gas to pass downwardly over an adjacent catalyst bed, whereby the collecting tray is arranged downstream of the device(s) for injecting the additional liquid and/or gas and comprises guiding channels directing liquid downwardly into a central part of the mixing zone, the compartment is arranged upon the collecting tray and comprises at least one passage allowing gas to pass downwardly, and the mixing zone is arranged in between the collecting tray and the distribution tray.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: June 3, 1997
    Assignee: Shell Oil Company
    Inventors: Arie P. Den Hartog, Willem Van Vliet