Patents by Inventor Robert Crohn

Robert Crohn 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: 11619749
    Abstract: Provided herein is a dosimetry device for quantifying the dosage of radiation emitted from a radiation source, the device comprising: (i) a radiation dose indicator; (ii) an optical means to capture the color change; and (iii) a software means to compare the optical density of the dose indicator as compared to a predetermined calibration curve. Also provided herein is a method of quantifying the dosage of radiation emitted from the radiation source. Further provided herein is use of said dosimetry device in various medical, food and industrial applications.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 4, 2023
    Assignee: ISP Investments LLC
    Inventors: Robert Crohn, David K. Hood
  • Publication number: 20220270520
    Abstract: A flexible self-adhesive label comprising a radiation-sensitive indicator for a syringe, the syringe comprising a barrel part with a front part and a rear part, having a tip at the front part, a piston at the rear part, and an exterior surface with a marking thereon. The label is attached to at least one part of the syringe and does not overlap with the marking. Also disclosed is a labeling method, kit and dispenser featuring such labels.
    Type: Application
    Filed: July 20, 2020
    Publication date: August 25, 2022
    Applicant: ISP Investments LLC
    Inventors: Robert CROHN, David K. HOOD, Emily Jean DREW, Maria MENCHON
  • Publication number: 20210286093
    Abstract: Provided herein is a dosimetry device for quantifying the dosage of radiation emitted from a radiation source, the device comprising: (i) a radiation dose indicator; (ii) an optical means to capture the color change; and (iii) a software means to compare the optical density of the dose indicator as compared to a predetermined calibration curve. Also provided herein is a method of quantifying the dosage of radiation emitted from the radiation source. Further provided herein is use of said dosimetry device in various medical, food and industrial applications.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 16, 2021
    Inventors: Robert CROHN, David K. HOOD
  • Patent number: 10365154
    Abstract: A process for improving sensitivity of a film base, coated with a dispersion of a normally crystalline polyacetylenic compound in a non-solvating liquid which is dried on the film surface, to particular photon energy band, specifically, long wavelength UV; the polyacetylenic compound preferably having at least two conjugated acetylenic linkages and containing from 12 to 60 carbon atoms. The sensitization of the film to long wavelength UV is achieved via the addition of photoinitiator(s) capable of absorbing UV energy and converting it to free radicals. The process comprises dispersing the normally crystalline polyacetylenic compound in the non-solvating liquid to a concentration of from about 2 to about 50% polyacetylene crystalline solids and a photoinitiator or combination of photoinitiators to a concentration of from 0.01 to 10%. The resultant dispersion is then coated and dried on a substrate. Additionally, applications using this film as a UVA illumination indicator and dosimeter are disclosed as well.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: July 30, 2019
    Assignee: ISP Investments LLC
    Inventors: Robert Crohn, Rosemarie Fairman, Hsiao-Yi Shih
  • Publication number: 20180017438
    Abstract: A process for improving sensitivity of a film base, coated with a dispersion of a normally crystalline polyacetylenic compound in a non-solvating liquid which is dried on the film surface, to particular photon energy band, specifically, long wavelength UV; the polyacetylenic compound preferably having at least two conjugated acetylenic linkages and containing from 12 to 60 carbon atoms. The sensitization of the film to long wavelength UV is achieved via the addition of photoinitiator(s) capable of absorbing UV energy and converting it to free radicals. The process comprises dispersing the normally crystalline polyacetylenic compound in the non-solvating liquid to a concentration of from about 2 to about 50% polyacetylene crystalline solids and a photoinitiator or combination of photoinitiators to a concentration of from 0.01 to 10%. The resultant dispersion is then coated and dried on a substrate. Additionally, applications using this film as a UVA illumination indicator and dosimeter are disclosed as well.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 18, 2018
    Applicant: ISP Investments LLC
    Inventors: Robert Crohn, Rosemarie Fairman, Hsiao-Yi Shih
  • Patent number: D861794
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: October 1, 2019
    Assignee: ISP INVESTMENTS LLC
    Inventors: Robert Crohn, Rosemarie Fairman