Patents by Inventor Lanny E. Todd

Lanny E. Todd 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).

  • Crosslinking agents for textile finishing baths and process for using same
    Patent number: 6585780
    Abstract: Phosphinato-substituted propane- and butanepolycarboxylic acids and derivatives thereof are useful as crosslinking agents for cellulosic materials to render them wrinkle resistant and/or iron free in a durable press process.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: July 1, 2003
    Assignee: Rhodia Inc.
    Inventors: Johnson D. Koola, Lanny E. Todd
  • Crosslinking agents for textile finishing baths and process for using same
    Publication number: 20020020025
    Abstract: Phosphinato-substituted propane- and butanepolycarboxylic acids and derivatives thereof are useful as crosslinking agents for cellulosic materials to render them wrinkle resistant and/or iron free in a durable press process.
    Type: Application
    Filed: January 10, 2001
    Publication date: February 21, 2002
    Inventors: Johnson D. Koola, Lanny E. Todd
  • Phosphite as a light stabilizer and functional additive for polyvinyl chloride
    Patent number: 5084499
    Abstract: The present invention is a method employing calcium phosphite as a light stabilizer and plate-out preventative for polyvinyl chloride. A composition of calcium phosphite and polyvinyl chloride is also disclosed.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: January 28, 1992
    Assignee: Rhone-Poulenc Inc.
    Inventors: Lanny E. Todd, William H. Meek, deceased
  • Recovery of phosphorus values from waste phosphoric acid liquors
    Patent number: 4988489
    Abstract: The phosphorus values from waste phosphoric acid containing organic contaminents such as wastes obtained in the manufacture of quinacridone pigments can be recovered in purified form by hydrolyzing phosphate esters, removing any formed alcohol, dissociating any amine phosphates and separating any free amine. The phosphorus values can be recovered in a purified form as phosphate salts.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: January 29, 1991
    Inventors: Lanny E. Todd, Alec F. Bridges
  • Recovery of phosphorus and aluminum from spent acid from the bright-dip aluminum finishing process
    Patent number: 4565680
    Abstract: In the process of the invention spent phosphoric acid is concentrated and stripped with air to a greater than 50% P.sub.2 O.sub.5 concentration to remove nitric acid. As a result of concentrating the spent acid a portion of the aluminum precipitates as monoaluminum phosphate, which is recovered by filtration. The filtrate is then ammoniated to produce a monoammonium phosphate solution. The solids precipitated during ammoniation and comprising aluminum ammonium phosphate which contains other metal phosphates are washed and reacted with aqueous ammonia to form diammonium phosphate.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: January 21, 1986
    Assignee: Stauffer Chemical Company
    Inventors: Lanny E. Todd, Philip E. Burke, Danny L. Smith, Carla T. Gleason