Patents by Inventor Erika Plettner

Erika Plettner 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: 20210289780
    Abstract: The present disclosure provides acaricidal compounds, i.e. compounds 3c {3,6}, 3c {4,6}, 3c {3, 3}, 3c {4,3} and 3c {6,6}, that are effective in killing Varroa destructor mites while being harmless to honey bees.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 23, 2021
    Applicants: Simon Fraser University, The State of Israel Ministry of Agriculture & Rural Development Agricultural Research Organization
    Inventors: Erika Plettner, Victoria Soroker
  • Publication number: 20180206489
    Abstract: The present disclosure describes methods for repelling an Anopheles gambiae including applying to a site of interest an effective amount of a compound of Formula I: wherein: R1 is methyl, ethyl, propyl, n-butyl, or allyl; R2 is at positions 2, 3 or 4 and is H, methyl, ethyl, propyl, n-butyl, or allyl; and R3 is optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; and with the proviso that the compound of Formula I does not include a compound according to Formula II: wherein R1? is methyl, ethyl, propyl, n-butyl, or allyl; or mixture thereof to a site of interest.
    Type: Application
    Filed: September 28, 2017
    Publication date: July 26, 2018
    Applicant: Simon Fraser University
    Inventors: Erika Plettner, Bernard Roitberg
  • Patent number: 10022338
    Abstract: This disclosure describes compounds that affect the olfactory responses of the honey bee mite (Varroa destructor) and methods of use thereof. The compounds do not kill Varroa destructor, and are therefore unlikely to generate Varroa destructor resistance, compared to an acaricide. The compounds can work in conjunction with other mite control approaches, such as a bottom board excluder and sticky board control devices, and can enhance the performance of other forms of mite control while decreasing disadvantages associated therewith.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 17, 2018
    Assignees: Simon Fraser University, The State of Israel, Ministry Of Agriculture & Rural Development, Agricultural Research Organization (ARO) (Volcani Center)
    Inventors: Erika Plettner, Victoria Soroker
  • Publication number: 20170209392
    Abstract: This disclosure describes compounds that affect the olfactory responses of the honey bee mite (Varroa destructor) and methods of use thereof. The compounds do not kill Varroa destructor, and are therefore unlikely to generate Varroa destructor resistance, compared to an acaricide. The compounds can work in conjunction with other mite control approaches, such as a bottom board excluder and sticky board control devices, and can enhance the performance of other forms of mite control while decreasing disadvantages associated therewith.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 27, 2017
    Applicants: SIMON FRASER UNIVERSITY, ORGANIZATION (ARO)
    Inventors: Erika Plettner, Victoria Soroker
  • Patent number: 9497963
    Abstract: The invention provides in part dialkoxybenzene and eugenol compounds for controlling infestation by a Lymantria dispar, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; or of Formula II: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; or mixtures thereof.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: November 22, 2016
    Assignee: Simon Fraser University
    Inventors: Erika Plettner, Yongmei Gong, Regine Gries
  • Publication number: 20160152538
    Abstract: The present disclosure describes methods for repelling an Anopheles gambiae including applying to a site of interest an effective amount of a compound of Formula I: wherein: R1 is methyl, ethyl, propyl, n-butyl, or allyl; R2 is at positions 2, 3 or 4 and is H, methyl, ethyl, propyl, n-butyl, or allyl; and R3 is optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; and with the proviso that the compound of Formula I does not include a compound according to Formula II: wherein R1? is methyl, ethyl, propyl, n-butyl, or allyl; or mixture thereof to a site of interest.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Applicant: Simon Fraser University
    Inventors: Erika Plettner, Bernard Roitberg
  • Patent number: 9125406
    Abstract: The invention provides in part dialkoxybenzene compounds for controlling infestation by a Trichoplusia ni, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; except that when R2 is at position 2, R3 if present is at position 3, and when R2 is at position 3, R3 if present is at positions 2 or 4, and when R2 is at position 4, R3 if present is at position 2, and when R2 is at position 4 and R3, if present, has reacted with an OH group at position 1 in a Markovnikov sense, then R3 becomes R4, a dihydrofuran.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: September 8, 2015
    Assignees: Simon Fraser University, The University of British Columbia
    Inventors: Erika Plettner, Murray Bruce Isman
  • Publication number: 20130045178
    Abstract: The invention provides in part dialkoxybenzene and eugenol compounds for controlling infestation by a Lymantria dispar, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; or of Formula II: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; or mixtures thereof.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 21, 2013
    Inventors: ERIKA PLETTNER, Yongmei Gong, Regine Gries
  • Publication number: 20100297059
    Abstract: The invention provides in part dialkoxybenzene and eugenol compounds for controlling infestation by a Lymantria dispar, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; or of Formula II: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; or mixtures thereof.
    Type: Application
    Filed: April 7, 2010
    Publication date: November 25, 2010
    Applicant: Simon Fraser University
    Inventors: Erika Plettner, Yongmei Gong, Regine Gries
  • Publication number: 20100190865
    Abstract: The invention provides in part dialkoxybenzene and eugenol compounds for controlling infestation by a Lymantria dispar, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; with the provisos that when R2 is at position 2, R3 if present is at position 3, or when R2 is at to position 3, R3 if present is at positions 2 or 4, or when R2 is at position 4, R3 if present is at position 2; or of Formula II: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl (3-methylbutyl) or allyl; or mixtures thereof.
    Type: Application
    Filed: November 19, 2009
    Publication date: July 29, 2010
    Applicant: Simon Fraser University
    Inventors: Erika Plettner, Yongmei Gong, Regine Gries
  • Publication number: 20100160451
    Abstract: The invention provides in part dialkoxybenzene compounds for controlling infestation by a Trichoplusia ni, and methods thereof. The compounds include a compound of Formula I: where R1 may be methyl, ethyl, propyl, n-butyl, isopentyl(3-methylbutyl) or allyl; R2 may be at positions 2, 3 or 4 and may be H, methyl, ethyl, propyl, n-butyl, isopentyl(3-methylbutyl) or allyl; and R3 may be optionally present at positions 2, 3 and 4, and is allyl; except that when R2 is at position 2, R3 if present is at position 3, and when R2 is at position 3, R3 if present is at positions 2 or 4, and when R2 is at position 4, R3 if present is at position 2, and when R2 is at position 4 and R3, if present, has reacted with an OH group at position 1 in a Markovnikov sense, then R3 becomes R4, a dihydrofuran.
    Type: Application
    Filed: November 19, 2009
    Publication date: June 24, 2010
    Applicants: Simon Fraser University, The University of British Columbia
    Inventors: Erika Plettner, Murray Bruce Isman
  • Publication number: 20050042708
    Abstract: The present invention relates to a method for screening chemically modified mutant enzymes for amidase and/or esterase activity. This method includes providing a chemically modified mutant enzyme with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residues with a thiol side chain, contacting the chemically modified mutant enzyme with a substrate for an amidase and/or a substrate for an esterase, and determining whether the chemically modified mutant enzyme exhibits amidase and/or esterase activity. The present invention also relates to chemically modified mutant enzymes and a method of producing them where one or more amino acid residues from an enzyme are replaced by cysteine residues, and the cysteine residues are modified by replacing at least some of the thiol hydrogen in the cysteine residue with a thiol side chain to form the chemically modified mutant enzyme.
    Type: Application
    Filed: July 26, 2004
    Publication date: February 24, 2005
    Inventors: J. Bryan, Erika Plettner
  • Publication number: 20040241780
    Abstract: The present invention relates to a method for screening chemically modified mutant enzymes for amidase and/or esterase activity. This method includes providing a chemically modified mutant enzyme with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residues with a thiol side chain, contacting the chemically modified mutant enzyme with a substrate for an amidase and/or a substrate for an esterase, and determining whether the chemically modified mutant enzyme exhibits amidase and/or esterase activity. The present invention also relates to chemically modified mutant enzymes and a method of producing them where one or more amino acid residues from an enzyme are replaced by cysteine residues, and the cysteine residues are modified by replacing at least some of the thiol hydrogen in the cysteine residue with a thiol side chain to form the chemically modified mutant enzyme.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 2, 2004
    Inventors: J. Bryan Jones, Erika Plettner
  • Publication number: 20020015976
    Abstract: The present invention relates to a method for screening chemically modified mutant enzymes for amidase and/or esterase activity. This method includes providing a chemically modified mutant enzyme with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residues with a thiol side chain, contacting the chemically modified mutant enzyme with a substrate for an amidase and/or a substrate for an esterase, and determining whether the chemically modified mutant enzyme exhibits amidase and/or esterase activity. The present invention also relates to chemically modified mutant enzymes and a method of producing them where one or more amino acid residues from an enzyme are replaced by cysteine residues, and the cysteine residues are modified by replacing at least some of the thiol hydrogen in the cysteine residue with a thiol side chain to form the chemically modified mutant enzyme.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 7, 2002
    Inventors: J. Bryan Jones, Erika Plettner
  • Publication number: 20020012959
    Abstract: The present invention relates to a method for screening chemically modified mutant enzymes for amidase and/or esterase activity. This method includes providing a chemically modified mutant enzyme with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residues with a thiol side chain, contacting the chemically modified mutant enzyme with a substrate for an amidase and/or a substrate for an esterase, and determining whether the chemically modified mutant enzyme exhibits amidase and/or esterase activity. The present invention also relates to chemically modified mutant enzymes and a method of producing them where one or more amino acid residues from an enzyme are replaced by cysteine residues, and the cysteine residues are modified by replacing at least some of the thiol hydrogen in the cysteine residue with a thiol side chain to form the chemically modified mutant enzyme.
    Type: Application
    Filed: August 24, 2001
    Publication date: January 31, 2002
    Inventors: J. Bryan Jones, Erika Plettner
  • Patent number: 6284512
    Abstract: The present invention relates to a method for screening chemically modified mutant enzymes for amidase and/or esterase activity. This method includes providing a chemically modified mutant enzyme with one or more amino acid residues from an enzyme being replaced by cysteine residues, where at least some of the cysteine residues are modified by replacing thiol hydrogen in the cysteine residues with a thiol side chain, contacting the chemically modified mutant enzyme with a substrate for an amidase and/or a substrate for an esterase, and determining whether the chemically modified mutant enzyme exhibits amidase and/or esterase activity. The present invention also relates to chemically modified mutant enzymes and a method of producing them where one or more amino acid residues from an enzyme are replaced by cysteine residues, and the cysteine residues are modified by replacing at least some of the thiol hydrogen in the cysteine residue with a thiol side chain to form the chemically modified mutant enzyme.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: September 4, 2001
    Assignees: Genencor International, Inc.
    Inventors: J. Bryan Jones, Erika Plettner