Patents by Inventor Chad R. Wold

Chad R. Wold 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: 20250196430
    Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.
    Type: Application
    Filed: February 28, 2025
    Publication date: June 19, 2025
    Inventors: John P. Purcell, James B. Svacha, Stephen A. Johnson, Timothy J. Lindquist, Grant F. Tiefenbruck, Chad R. Wold
  • Publication number: 20220234276
    Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.
    Type: Application
    Filed: April 19, 2022
    Publication date: July 28, 2022
    Inventors: John P. Purcell, James B. Svacha, Stephen A. Johnson, Timothy J. Lindquist, Grant F. Tiefenbruck, Chad R. Wold
  • Publication number: 20210237336
    Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.
    Type: Application
    Filed: December 28, 2016
    Publication date: August 5, 2021
    Inventors: JOHN P. PURCELL, JAMES B. SVACHA, STEPHEN A. JOHNSON, TIMOTHY J. LINDQUIST, GRANT F. TIEFENBRUCK, CHAD R. WOLD
  • Patent number: 10962806
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 30, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Publication number: 20200217989
    Abstract: A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Inventors: Chad R. Wold, Yufeng Liu, Timothy J. Hebrink, Stephen A. Johnosn, Diane North, Laurent Froissard, Edward J. Kivel
  • Patent number: 10444546
    Abstract: An optical filter including a polymeric multilayer optical film is provided. The optical film has a reflection band having a reflection band edge that is, independent of location, one of a short wavelength band edge at a short wavelength side of the reflection band and a long wavelength band edge at a long wavelength side of the reflection band. The reflection band edge has a normal incidence reflection band edge wavelength that varies with location and that is a first wavelength at a first location and a second wavelength at a second location different from the first location. The first wavelength may be higher than the second wavelength by at least 2 percent.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 15, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Chad R. Wold, Michael F. Weber, Myron K. Jordan
  • Publication number: 20180239171
    Abstract: An optical filter including a polymeric multilayer optical film is provided. The optical film has a reflection band having a reflection band edge that is, independent of location, one of a short wavelength band edge at a short wavelength side of the reflection band and a long wavelength band edge at a long wavelength side of the reflection band. The reflection band edge has a normal incidence reflection band edge wavelength that varies with location and that is a first wavelength at a first location and a second wavelength at a second location different from the first location. The first wavelength may be higher than the second wavelength by at least 2 percent.
    Type: Application
    Filed: September 20, 2016
    Publication date: August 23, 2018
    Inventors: Chad R. Wold, Michael F. Weber, Myron K. Jordan
  • Patent number: 10054803
    Abstract: Certain filters have been found to enhance color discrimination for individuals with color vision deficiency (CVD), aka color-blind individuals. The filters generally include a multilayer optical film with a strong, narrow reflection band in part of the green region of the visible spectrum. The film has an average internal transmission from 420-680 nm of at least 50%, 60%, or 70%, and an average internal transmission?10%, 5%, 2%, or 1% over a 10 nm wide range that includes 550 nm associated with a reflection band having a width (FWHM) of 60 nm or 50 nm or less. The filter may include a magenta layer disposed on a viewer side of the multilayer optical film to reduce glare, the magenta layer selectively absorbing green light. The magenta layer combined with the multilayer optical film may provide a rejection band whose width (FWHM) is 60 nm or less.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 21, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Chad R. Wold, Michael F. Weber
  • Publication number: 20180113328
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 26, 2018
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Patent number: 9885885
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: February 6, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Publication number: 20160077361
    Abstract: Certain filters have been found to enhance color discrimination for individuals with color vision deficiency (CVD), aka color-blind individuals. The filters generally include a multilayer optical film with a strong, narrow reflection band in part of the green region of the visible spectrum. The film has an average internal transmission from 420-680 nm of at least 50%, 60%, or 70%, and an average internal transmission ?10%, 5%, 2%, or 1% over a 10 nm wide range that includes 550 nm associated with a reflection band having a width (FWHM) of 60 nm or 50 nm or less. The filter may include a magenta layer disposed on a viewer side of the multilayer optical film to reduce glare, the magenta layer selectively absorbing green light. The magenta layer combined with the multilayer optical film may provide a rejection band whose width (FWHM) is 60 nm or less.
    Type: Application
    Filed: January 8, 2014
    Publication date: March 17, 2016
    Inventors: Chad R. Wold, Michael F. Weber
  • Publication number: 20150146166
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Application
    Filed: November 27, 2013
    Publication date: May 28, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Publication number: 20140349094
    Abstract: A monolithic multilayer article includes a thermoformable cellular polyester core layer and an oriented polyester skin layer on at least one major side of the polyester core layer.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 27, 2014
    Inventors: James M. Jonza, Duane D. Fansler, Joel A. Getschel, Ibrahim S. Gunes, Jeffrey P. Kalish, Matthew J. Schmid, Mark A. Strobel, Chad R. Wold
  • Publication number: 20040029511
    Abstract: The present invention provides abrasive articles and methods of making abrasive articles. The abrasive articles have a polymeric material that includes (1) a reaction product of components that include (a) an epoxy-functional material, (b) at least one of a cyclic anhydride or a diacid derived therefrom, and (c) a polyfunctional (meth)acrylate; and/or (2) a polymeric material preparable by combining at least (a) an epoxy-functional material, (b) at least one of a cyclic anhydride or a diacid derived therefrom, and (c) a polyfunctional (meth)acrylate.
    Type: Application
    Filed: March 20, 2001
    Publication date: February 12, 2004
    Inventors: Don H. Kincaid, Ernest L. Thurber, Eric G. Larson, Gregg D. Dahlke, Chad R. Wold
  • Patent number: 6096437
    Abstract: A ceramer precursor coating composition capable of being formed into ceramer coatings having high tensile modulus and tensile strength while retaining a relatively low strain-at-break are provided. The ceramer precursor coating composition includes unsaturated oil stock and sol-gel precursor. The sol-gel precursor includes a mixture of at least two sol-gel precursor species which are based on different metal atoms. An article having at least one surface coated with a ceramer coating formed from the inorganic/organic coating composition is also provided.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: August 1, 2000
    Assignee: NDSU-Research Foundation
    Inventors: Mark D. Soucek, Chad R. Wold