Patents by Inventor David A. Durkee

David A. Durkee 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: 20240084231
    Abstract: Methods and systems are described that produce an ultra-high gravity alcoholic beverage from a high gravity alcoholic beverage stream using an efficient, low waste, combination reverse osmosis and forward osmosis system. Utilizing a reverse osmosis system prior to using a forward osmosis system in removing water content from a high gravity alcoholic beverage stream significantly reduces a draw solution load when compared to a process that utilizes a forward osmosis system alone or prior to using any other dewatering system.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: PORIFERA, INC.
    Inventors: David DURKEE, Frederik HAVEL
  • Publication number: 20240065966
    Abstract: The present invention relates generally to methods of use and compositions useful for moisturizing skin and/or lightening or whitening skin. The composition includes a combination of Angelica acutiloba root extract and a Salicornia herbacea extract.
    Type: Application
    Filed: April 18, 2023
    Publication date: February 29, 2024
    Inventors: Greg NORMAN, David GAN, Michelle HINES, Lisha VANPELT, Wanli ZHAO, Barbara DURKEE, Lee VICKERS, Patricia JACOBY
  • Patent number: 11802261
    Abstract: A system and method are provided to produce a beverage concentrate such as a beer extract. A forward osmosis (FO) filtration technique removes pure water from a conventional brewed beer; accordingly, the beer extract can be produced without distillation or other alteration steps that may negatively impact of flavor and aroma components of the beer. A draw solution is used to provide a differential osmotic pressure through a FO filtration device. The diluted draw solution is recycled by reverse osmosis, distillation, and combinations thereof.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 31, 2023
    Assignee: Porifera, Inc.
    Inventors: Frederik Havel, David Durkee
  • Publication number: 20220267700
    Abstract: Methods and systems are described that produce an ultra-high gravity alcoholic beverage from a high gravity alcoholic beverage stream using an efficient, low waste, combination reverse osmosis and forward osmosis system and an enhanced draw solution. Utilizing a reverse osmosis system prior to using a forward osmosis system in removing water content from a high gravity alcoholic beverage stream significantly reduces a draw solution load when compared to a process that utilizes a forward osmosis system alone or prior to using any other dewatering system. In addition, the enhanced draw solution, comprising at least one of acetaldehyde, amyl acetate, ethyl acetate, ethyl hexanoate, ethyl octanoate, iso-amyl acetate, iso-amyl alcohol, iso-butanol, n-propanol, pentyl acetate, and phenyl ethyl alcohol, offers an efficient and low-cost alternative to ethanol-based draw solutions.
    Type: Application
    Filed: August 21, 2020
    Publication date: August 25, 2022
    Inventors: Frederik HAVEL, David DURKEE
  • Publication number: 20220186162
    Abstract: Methods and systems are described that filter and stabilize ultra-high gravity alcoholic beverages produced by forward osmosis. A rough ultra-high gravity alcoholic beverage may be received from a dewatering system and then passed on to a chiller as part of a post dewatering process. The ultra-high gravity alcoholic beverage may be held at a predetermined temperature for a specific amount of time such that the temperature of the ultra-high gravity alcoholic beverage is prevented from falling below a freezing point of the ultra-high gravity alcoholic beverage. The chilled ultra-high gravity alcoholic beverage is then passed through a number of filters of a filtration system. The filters may be arranged in an order progressing from coarse to fine filters, where haze compounds and their precursors are removed from the ultra-high gravity alcoholic beverage producing a clear and stable product.
    Type: Application
    Filed: April 10, 2020
    Publication date: June 16, 2022
    Inventors: Frederik HAVEL, David DURKEE
  • Publication number: 20200325428
    Abstract: Methods and systems are described that produce an ultra-high gravity alcoholic beverage from a high gravity alcoholic beverage stream using an efficient, low waste, combination reverse osmosis and forward osmosis system. Utilizing a reverse osmosis system prior to using a forward osmosis system in removing water content from a high gravity alcoholic beverage stream significantly reduces a draw solution load when compared to a process that utilizes a forward osmosis system alone or prior to using any other dewatering system.
    Type: Application
    Filed: December 6, 2018
    Publication date: October 15, 2020
    Inventors: David DURKEE, Frederik HAVEL
  • Publication number: 20200140797
    Abstract: A system and method are provided to produce a beverage concentrate such as a beer extract. A forward osmosis (FO) filtration technique removes pure water from a conventional brewed beer; accordingly, the beer extract can be produced without distillation or other alteration steps that may negatively impact of flavor and aroma components of the beer. A draw solution is used to provide a differential osmotic pressure through a FO filtration device. The diluted draw solution is recycled by reverse osmosis, distillation, and combinations thereof.
    Type: Application
    Filed: April 24, 2018
    Publication date: May 7, 2020
    Inventors: Frederik HAVEL, David DURKEE
  • Publication number: 20100074997
    Abstract: We disclose a composition comprising greater than about 95% d.s.b. of a starch comprising short chain amylose having an average degree of polymerization (DP) from about 20 to about 150, wherein an aqueous slurry comprising about 20% d.s.b. of the composition has a minimum yield stress of at least 400 Pa. We also disclose a method of preparing the composition comprising contacting a starch paste with a 4-?-glucanotransferase, to yield a chain-extended starch; contacting the chain-extended starch with a debranching enzyme, to yield a debranched starch; crystallizing the debranched starch, to yield a crystallized debranched starch; and shearing the crystallized debranched starch, to yield the composition. We also disclose a food formulation comprising a foodstuff and the composition.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 25, 2010
    Inventors: Annette Evans, Patricia Richmond, Thomas Eilers, David Durkee
  • Publication number: 20090297690
    Abstract: A process for producing a sustained release starch product comprises (1) combining and mixing starch, hydrocolloid, and water to form a starch material, and (2) drying the starch material to form a starch product. The dried starch product optionally can be milled to the desired particle size.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 3, 2009
    Inventors: Warren L. Nehmer, David A. Durkee, Annette Evans, Shondra Cook, Doris Dougherty, Michelle Schwenk