Patents by Inventor Howard Shanks

Howard Shanks 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).

  • ISOMERIZATION OF CYCLOHEXENEDICARBOXYLIC ACID AND ITS DERIVATIVES
    Publication number: 20230373895
    Abstract: The present application relates to a process for preparation of a compound of Formula (I): wherein R1, R2, and R3 are as described herein and salts thereof and to a process of preparing such a compound. The present application also relates to a polymer of Formula (V): wherein R3, Y, i, j, s, and m are as described herein and to a process for preparation of such polymers.
    Type: Application
    Filed: September 21, 2021
    Publication date: November 23, 2023
    Inventors: Jean-Philippe TESSONNIER, Brent Howard SHANKS, Eric William COCHRAN, Joseph Eugene HADEL, Marco Nazareno DELL'ANNA, Prerana CARTER
  • Lewis and bronsted-lowry acid-catalyzed production 5-hydroxymethylfurfural (HMF) from glucose
    Patent number: 8642791
    Abstract: Described is a process to make hydroxymethylfurfural (HMF) from glucose. The process includes the steps of reacting a feedstock solution comprising glucose, in the presence of a homogeneous Brønsted acid catalyst and a homogeneous Lewis acid catalyst, in a reaction vessel containing a biphasic reaction medium. The reaction medium includes an aqueous reaction solution and a substantially immiscible organic extraction solution. HMF is produced in the aqueous reaction solution and extracted into the organic extraction solution.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: February 4, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: James A. Dumesic, Yomaira J. Pagán-Torres, Tianfu Wang, Brent Howard Shanks
  • LEWIS AND BRONSTED-LOWRY ACID-CATALYZED PRODUCTION OF 5-HYDROXYMETHYLFURFURAL (HMF) FROM GLUCOSE
    Publication number: 20130150595
    Abstract: Described is a process to make hydroxymethylfurfural (HMF) from glucose. The process includes the steps of reacting a feedstock solution comprising glucose, in the presence of a homogeneous Brønsted acid catalyst and a homogeneous Lewis acid catalyst, in a reaction vessel containing a biphasic reaction medium. The reaction medium includes an aqueous reaction solution and a substantially immiscible organic extraction solution. HMF is produced in the aqueous reaction solution and extracted into the organic extraction solution.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Inventors: James A. Dumesic, Yomaira J. Pagán-Torres, Tianfu Wang, Brent Howard Shanks
  • Patterned substrates and methods for nerve regeneration
    Patent number: 6676675
    Abstract: Micropatterned substrates and methods for fabrication of artificial nerve regeneration conduits and methods for regenerating nerves are provided. Guidance compounds or cells are seeded in grooves formed on the patterned substrate. The substrates may also be provided with electrodes to provide electrical guidance cues to the regenerating nerve. The micropatterned substrates give physical, chemical, cellular and/or electrical guidance cues to promote nerve regeneration at the cellular level.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: January 13, 2004
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Surya K. Mallapragada, Carole Heath, Howard Shanks, Cheryl A. Miller, Srdija Jeftinija
  • Patterned substrates and methods for nerve regeneration
    Publication number: 20020051806
    Abstract: Micropatterned substrates and methods for fabrication of artificial nerve regeneration conduits and methods for regenerating nerves are provided. Guidance compounds or cells are seeded in grooves formed on the patterned substrate. The substrates may also be provided with electrodes to provide electrical guidance cues to the regenerating nerve. The micropatterned substrates give physical, chemical, cellular and/or electrical guidance cues to promote nerve regeneration at the cellular level.
    Type: Application
    Filed: April 19, 2001
    Publication date: May 2, 2002
    Inventors: Surya K. Mallapragada, Carole Heath, Howard Shanks, Cheryl A. Miller, Srdija Jeftinija
  • Dehydrogenation catalyst and process
    Patent number: 5962757
    Abstract: Dehydrogenation catalysts are prepared by a predoping process comprising, mixing iron oxide materials with a predopant to form a blend of iron oxide and predopant and heating the blend to the predoping conditions and thereafter forming a catalyst. The catalysts so prepared are useful in the dehydrogenation of a composition having at least one carbon--carbon double bond. Such catalytic uses include the conversion of ethylbenzene to styrene.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: October 5, 1999
    Assignee: Shell Oil Company
    Inventors: Stanley Nemec Milam, Brent Howard Shanks
  • Restructured iron oxide for use in iron oxide catalysts
    Patent number: 5668075
    Abstract: In one aspect of the invention, a composition is presented comprising restructured iron oxide particles. A method is also presented for restructuring iron oxide particles to form low surface area iron oxide particles. In this method, iron oxide particles are contacted with an effective mount of a restructuring agent and are then heated until restructuring occurs.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: September 16, 1997
    Assignee: Shell Oil Company
    Inventors: Stanley Nemec Milam, Brent Howard Shanks