Patents by Inventor Grant F. Tiefenbruck

Grant F. Tiefenbruck 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).

  • LOW SHRINK POLYESTER FILMS AND METHOD OF MAKING
    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
  • LOW SHRINK POLYESTER FILMS AND METHOD OF MAKING
    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
  • Acicular boehmite nanoparticles
    Patent number: 9102690
    Abstract: Acicular boehmite nanoparticles, methods of making acicular boehmite nanoparticles, and composite materials that contain acicular boehmite nanoparticles are described. The acicular boehmite nanoparticles are prepared in a continuous hydrothermal reactor from a feedstock solution containing a soluble aluminum-containing precursor.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: August 11, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Grant F. Tiefenbruck, Brant U. Kolb, Thomas E. Wood
  • Aerogel composites
    Patent number: 8734931
    Abstract: Aerogel composites and bonded aerogel composites are described. The aerogel composites include monolithic aerogel material located in cavities between a base layer and a structured layer that is bonded to the base layer. Additional layers may be bonded to the base layer and/or the structured layer to form bonded aerogel composites.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: May 27, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Jayshree Seth, Bryan C. Feisel, Neeraj Sharma, Lian S. Tan, Grant F. Tiefenbruck, Jung-Sheng Wu
  • Method for continuous sintering on indefinite length webs
    Patent number: 8720052
    Abstract: A method of applying a conductive pattern of metal onto a web of indefinite length material. This method includes applying a metal containing composition onto the web in a predefined pattern, providing a roll having a very low thermal mass, and conveying the patterned web around the roll while simultaneously applying heat energy to the metal containing composition thereby converting the metal to a conductive pattern. This allows for flexible circuitry to be fabricated in an inexpensive roll-to-roll process.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: May 13, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel J. Theis, Brian K. Nelson, James N. Dobbs, Samuel Kidane, Ronald P. Swanson, Daniel H. Carlson, Grant F. Tiefenbruck, Karl K. Stensvad
  • Process for the surface modification of particles
    Patent number: 8394977
    Abstract: A method for the preparation of functionalized particles includes providing a feedstock that includes particles, a surface treatment agent reactive with the particles and solvent. The feedstock is direct through a continuous hydrothermal reactor maintained at a temperature sufficient to react the particles with the surface treatment agents to thereby provide functionalized particles. The method of the invention is capable of providing the functionalized particles in less than about 4 hours.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 12, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Grant F. Tiefenbruck, Matthew N. Archibald, James M. Nelson, Wendy L. Thompson, William J. Schultz, Peter D. Condo, Brant U. Kolb, Jimmie R. Baran, Jr.
  • Process for the surface modification of particles
    Patent number: 8318120
    Abstract: A method for the preparation of functionalized particles includes providing a feedstock made of particles, a surface treatment agent reactive with the particles, and solvent. The feedstock is exposed to microwave radiation to heat the feedstock and react the particles with the surface treatment agent to provide the functionalized particles in less than about 60 minutes.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: November 27, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: James M. Nelson, Matthew N. Archibald, Wendy L. Thompson, Grant F. Tiefenbruck
  • METHOD FOR CONTINUOUS SINTERING ON INDEFINITE LENGTH WEBS
    Publication number: 20110067234
    Abstract: A method of applying a conductive pattern of metal onto a web of indefinite length material. This method includes applying a metal containing composition onto the web in a predefined pattern, providing a roll having a very low thermal mass, and conveying the patterned web around the roll while simultaneously applying heat energy to the metal containing composition thereby converting the metal to a conductive pattern. This allows for flexible circuitry to be fabricated in an inexpensive roll-to-roll process.
    Type: Application
    Filed: May 20, 2009
    Publication date: March 24, 2011
    Inventors: Daniel J. Theis, Brian K. Nelson, James N. Dobbs, Samuel Kidane, Ronald P. Awanson, Daniel H. Carlson, Grant F. Tiefenbruck, Karl K. Stensvad
  • Process for the Surface Modification of Particles
    Publication number: 20110048923
    Abstract: A method for the preparation of functionalized particles includes providing a feedstock made of particles, a surface treatment agent reactive with the particles, and solvent. The feedstock is exposed to microwave radiation to heat the feedstock and react the particles with the surface treatment agent to provide the functionalized particles in less than about 60 minutes.
    Type: Application
    Filed: April 17, 2009
    Publication date: March 3, 2011
    Inventors: James M. Nelson, Matthew N. Archibald, Wendy L. Thompson, Grant F. Tiefenbruck
  • PROCESS FOR THE SURFACE MODIFICATION OF PARTICLES
    Publication number: 20110021797
    Abstract: A method for the preparation of functionalized particles includes providing a feedstock that includes particles, a surface treatment agent reactive with the particles and solvent. The feedstock is direct through a continuous hydrothermal reactor maintained at a temperature sufficient to react the particles with the surface treatment agents to thereby provide functionalized particles. The method of the invention is capable of providing the functionalized particles in less than about 4 hours.
    Type: Application
    Filed: March 26, 2009
    Publication date: January 27, 2011
    Inventors: Grant F. Tiefenbruck, Matthew N. Archibald, James M. Nelson, Wendy L. Thompson, William J. Schultz, Peter D. Condo, Brant U. Kolb, Jimmie R. Baran, JR.
  • ACICULAR BOEHMITE NANOPARTICLES
    Publication number: 20100267881
    Abstract: Acicular boehmite nanoparticles, methods of making acicular boehmite nanoparticles, and composite materials that contain acicular boehmite nanoparticles are described. The acicular boehmite nanoparticles are prepared in a continuous hydrothermal reactor from a feedstock solution containing a soluble aluminum-containing precursor.
    Type: Application
    Filed: December 17, 2008
    Publication date: October 21, 2010
    Inventors: Grant F. Tiefenbruck, Brant U. Kolb, Thomas E. Wood
  • METHODS OF MAKING METAL OXIDE NANOPARTICLES
    Publication number: 20100119429
    Abstract: Methods of preparing metal oxide nanoparticles are described. The methods involve the thermal decomposition of a metal-carboxylate complex within a continuous, flow-through, tubular reactor. The resulting metal oxide nanoparticles contain iron and can be magnetic, non-agglomerated, crystalline or a combination thereof.
    Type: Application
    Filed: February 28, 2007
    Publication date: May 13, 2010
    Inventors: Sarah M. Mullins, Grant F. Tiefenbruck, Danny B. Anderson
  • AEROGEL COMPOSITES
    Publication number: 20090029109
    Abstract: Aerogel composites and bonded aerogel composites are described. The aerogel composites include monolithic aerogel material located in cavities between a base layer and a structured layer that is bonded to the base layer. Additional layers may be bonded to the base layer and/or the structured layer to form bonded aerogel composites.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 29, 2009
    Inventors: Jayshree Seth, Bryan C. Feisel, Neeraj Sharma, Lian S. Tan, Grant F. Tiefenbruck, Jung-Sheng Wu