Patents by Inventor David Gindelberger

David Gindelberger 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).

  • Patent number: 11352337
    Abstract: Provided herein are methods for converting CBD to a product mixture comprising ?8-THC, ?9-THC, or a combination thereof. The methods provided herein may comprise one or more of (1) a contacting step wherein a starting material comprising CBD, a catalyst comprising a zeolite, and optionally a solvent are added to a reaction vessel, thereby forming a reaction mixture; (2) a conversion step wherein at least a portion of the CBD is converted to THC, thereby forming a product mixture; and (3) optionally, a separation step wherein at least a portion of the catalyst is removed from the product mixture. Advantageously, the methods do not require the use of catalysts or other reagents that are hazardous to human health.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: June 7, 2022
    Assignee: Acid Neutral Alkaline Laboratory
    Inventor: David Gindelberger
  • Patent number: 11242330
    Abstract: Provided herein are methods for converting CBD to a product mixture comprising ?8-THC, ?9-THC, or a combination thereof. The methods provided herein may comprise one or more of (1) a contacting step wherein a starting material comprising CBD, a carboxylic acid catalyst, and optionally a solvent are added to a reaction vessel, thereby forming a reaction mixture; (2) a conversion step wherein at least a portion of the CBD is converted to THC, thereby forming a product mixture; and (3) optionally, a separation step wherein at least a portion of the carboxylic acid catalyst is removed from the product mixture. In preferred embodiments, the methods utilize a carboxylic acid that is commonly used as a food additive and is generally recognized as safe for human consumption. The methods provided herein do not require the use of catalysts or other reagents that are hazardous to human health.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: February 8, 2022
    Assignee: Acid Neutral Alkaline Laboratory
    Inventor: David Gindelberger
  • Patent number: 11242328
    Abstract: Provided herein are methods for converting CBD to a product mixture comprising ?8-THC, ?9-THC, or a combination thereof. The methods provided herein may comprise one or more of (1) a contacting step wherein a starting material comprising CBD, a catalyst comprising an iron (III) salt, and optionally a solvent are added to a reaction vessel, thereby forming a reaction mixture; (2) a conversion step wherein at least a portion of the CBD is converted to THC, thereby forming a product mixture; and (3) optionally, a separation step wherein at least a portion of the catalyst is removed from the product mixture. Advantageously, the methods utilize a catalyst comprising iron (III) sulfate, which is commonly used as a food additive and is generally recognized as safe for human consumption, and do not require the use of catalysts or other reagents that are hazardous to human health.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: February 8, 2022
    Assignee: Acid Neutral Alkaline Laboratory
    Inventor: David Gindelberger
  • Patent number: 10556889
    Abstract: Provided herein is a compound of Formula I, or a salt thereof, wherein R1 is a moiety having the following structure: wherein Z is selected from the group consisting of O and N; X is selected from the group consisting of a bond, NH, and C(O)NH; and A is selected from the group consisting of substituted aryl and substituted heteroaryl. Compounds of Formula I are useful as opioid receptor agonists. Because the compounds exhibit relatively low levels of ?-arrestin recruitment, they do not produce the negative side effects commonly associated with morphine-derived compounds.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: February 11, 2020
    Assignee: Blue Sky Pharmaceuticals, LLC
    Inventors: David Gindelberger, John J. Talley
  • Patent number: 10100005
    Abstract: Provided herein are compounds that are prodrugs for mesalazine. Generally, the compounds described herein correspond to a mesalazine molecule wherein the amino group is replaced by a novel protecting group. For example, in the compounds of Formula I described herein, the compound comprises a glyoxylate derivative moiety. In the compounds of Formula II described herein, the compound comprises a vanillin derivative moiety.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 16, 2018
    Assignee: Eclipse Therapeutics, LLC
    Inventor: David Gindelberger
  • Publication number: 20080108841
    Abstract: Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis reactions efficiently, which can be recovered from the reaction mixture and reused. Internal olefin compounds, specifically beta-substituted styrenes, are used as ligand precursors. Compared to terminal olefin compounds such as unsubstituted styrenes, the beta-substituted styrenes are easier and less costly to prepare, and more stable since they are less prone to spontaneous polymerization. Methods of preparing chelating-carbene metathesis catalysts without the use of CuCl are disclosed. This eliminates the need for CuCl by replacing it with organic acids, mineral acids, mild oxidants or even water, resulting in high yields of Hoveyda-type metathesis catalysts.
    Type: Application
    Filed: September 11, 2007
    Publication date: May 8, 2008
    Applicant: MATERIA, INC.
    Inventors: Richard Pederson, Jason Woertink, Christopher Haar, David Gindelberger, Yann Schrodi
  • Publication number: 20060122412
    Abstract: Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis reactions efficiently, which can be recovered from the reaction mixture and reused. Internal olefin compounds, specifically beta-substituted styrenes, are used as ligand precursors. Compared to terminal olefin compounds such as unsubstituted styrenes, the beta-substituted styrenes are easier and less costly to prepare, and more stable since they are less prone to spontaneous polymerization. Methods of preparing chelating-carbene metathesis catalysts without the use of CuCl are disclosed. This eliminates the need for CuCl by replacing it with organic acids, mineral acids, mild oxidants or even water, resulting in high yields of Hoveyda-type metathesis catalysts.
    Type: Application
    Filed: January 31, 2006
    Publication date: June 8, 2006
    Applicant: Materia, Inc.
    Inventors: Richard Pederson, Jason Woertink, Christopher Haar, David Gindelberger, Yann Schrodi
  • Publication number: 20050043497
    Abstract: Disclosed is a catalyst system including a phenoxide transition metal catalyst compound and a Lewis acid containing activator, a supported catalyst system thereof, a method of preparing the catalyst system and a process for polymerizing olefin(s) utilizing same.
    Type: Application
    Filed: October 17, 2003
    Publication date: February 24, 2005
    Inventors: David Gindelberger, David McConville