Patents by Inventor James Vaughan Harshman

James Vaughan Harshman 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: 20230075149
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Application
    Filed: August 22, 2022
    Publication date: March 9, 2023
    Applicant: Evoqua Water Technologies LLC
    Inventor: James Vaughan Harshman
  • Patent number: 11420161
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 23, 2022
    Assignee: Evoqua Water Technologies LLC
    Inventor: James Vaughan Harshman
  • Publication number: 20210113961
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Application
    Filed: May 29, 2020
    Publication date: April 22, 2021
    Applicant: Evoqua Water Technologies LLC
    Inventor: James Vaughan Harshman
  • Patent number: 10695716
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: June 30, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventor: James Vaughan Harshman
  • Publication number: 20170015571
    Abstract: Some aspects of the invention can involve compositions, systems, and related techniques that control or reduce objectionable odor characteristics of a body or a stream of wastewater. The compositions, systems, and related techniques can comprise one or more compounds that adjust metabolic activity of at least a portion of microorganisms in wastewater to inhibit or disfavor the formation of at least one objectionable odorous compound or species and one or more compounds that modify, shift, or promote one or more states or characteristics of one or more objectionable odorous species in wastewater. The metabolic modifying compound can be an anthraquinone and the state modifying compound can be an alkaline or pH-elevating compound.
    Type: Application
    Filed: September 27, 2016
    Publication date: January 19, 2017
    Inventors: James Vaughan Harshman, David Leonard Morano
  • Publication number: 20160051929
    Abstract: A system for removing undesirable compounds from contaminated air includes a biofilter having an alkaline material introduction system and a fuzzy-logic based controller. A contaminant, such as hydrogen sulfide, is removed from contaminated air by passing the contaminated air through the biofilter.
    Type: Application
    Filed: November 4, 2015
    Publication date: February 25, 2016
    Inventor: James Vaughan Harshman
  • Publication number: 20110233146
    Abstract: Some aspects of the invention can involve compositions, systems, and related techniques that control or reduce objectionable odor characteristics of a body or a stream of wastewater. The compositions, systems, and related techniques can comprise one or more compounds that adjust metabolic activity of at least a portion of microorganisms in wastewater to inhibit or disfavor the formation of at least one objectionable odorous compound or species and one or more compounds that modify, shift, or promote one or more states or characteristics of one or more objectionable odorous species in wastewater. The metabolic modifying compound can be an anthraquinone and the state modifying compound can be an alkaline or pH-elevating compound.
    Type: Application
    Filed: September 24, 2010
    Publication date: September 29, 2011
    Applicant: Siemens Water Technologies Corp.
    Inventors: James Vaughan Harshman, David Leonard Morano