Patents by Inventor Richard Steffen

Richard Steffen 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).

  • Heddle shaft with novel corner connector
    Patent number: 7617844
    Abstract: A novel corner connector for heddle shafts has detent means with which it can be retained in a shaft rod. The load-related locking is effected independently of the detent means by a clamping device that acts between the struts of the shaft rod.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: November 17, 2009
    Assignee: Groz-Beckert KG
    Inventors: Herbert Schwane, Richard Steffen, Andre Olbing, Karl-Heinz Gesing
  • Heddle shaft with novel corner connector
    Publication number: 20050081942
    Abstract: A novel corner connector for heddle shafts has detent means with which it can be retained in a shaft rod. The load-related locking is effected independently of the detent means by a clamping device that acts between the struts of the shaft rod.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 21, 2005
    Applicant: Groz-Beckert KG
    Inventors: Herbert Schwane, Richard Steffen, Andre Olbing, Karl-Heinz Gesing
  • Vanadium removal in FCC by use of an outboard vessel
    Patent number: 6610255
    Abstract: A fluid catalytic cracking (FCC) process performed in a FCC process unit containing a reactor, a regenerator and an outboard vessel. Catalyst particles containing vanadium are circulated back and forth from the reactor to the regenerator and back and forth from the regenerator and the outboard vessel. The outboard vessel contains a vanadium trap material that removes vanadium from at least a portion of the catalyst particles.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: August 26, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Guang Cao, Todd Richard Steffens, Gordon Frederick Stuntz, Daniel Paul Leta, William Russell Adamson, Albert Yuan-Hsin Hu