Patents by Inventor Richard HATFIELD

Richard HATFIELD 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).

  • Patent number: 8738332
    Abstract: A computer aided design application modifies a CAD drawing having one or more electrical components by optimizing a plurality of circuits and associated panels, and assigning circuit and panel identifiers to each component for producing an engineering drawing. Further such identified components can be placed in home run groups, implementing shortest path calculations for various wire types and using neutral wires sharing options for producing an engineering drawing illustrating the home run grouping and identifiers, panel schedules and complete bills of materials.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: May 27, 2014
    Inventors: Gerry Stebnicki, Terry Smith, Dean Whitford, Richard Hatfield
  • Publication number: 20110126165
    Abstract: A computer aided design application modifies a CAD drawing having one or more electrical components by optimizing a plurality of circuits and associated panels, and assigning circuit and panel identifiers to each component for producing an engineering drawing. Further such identified components can be placed in home run groups, implementing shortest path calculations for various wire types and using neutral wires sharing options for producing an engineering drawing illustrating the home run grouping and identifiers, panel schedules and complete bills of materials.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Applicant: 1117914 ALBERTA LTD.
    Inventors: Gerry STEBNICKI, Terry SMITH, Dean WHITFORD, Richard HATFIELD
  • Patent number: 6506860
    Abstract: A new and novel linear, regio-regular vicinal functionalized polymer methods of forming the same are described. The polymer has a linear hydrocarbon polymer backbone with vicinal functional groups having oxygen and/or nitrogen atom containing groups, such as hydroxy, carboxylic acid or ester, carbonyl acetate, amide, nitrile and the like, pendent from the polymer backbone chain in a regio-regular manner.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: January 14, 2003
    Assignee: Cryovac, Inc.
    Inventors: Donald Albert Bansleben, Truc-Chi Thi Huynh-Tran, Rusty Lew Blanski, Paul Anthony Hughes, William Peyton Roberts, Robert Howard Grubbs, Galen Richard Hatfield
  • Patent number: 6313241
    Abstract: The subject invention is directed to new and novel copolymers having long chain branches formed from ethylene and at least one vinyl alicyclic monomer, to solution polymerization using certain unstrained bridged metallocene catalyst which has been found capable of forming said copolymers and to packaging material formed therefrom.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: November 6, 2001
    Assignee: Cryovac, Inc.
    Inventors: William John Gauthier, Ronald Dean Moffitt, Galen Richard Hatfield
  • Patent number: 6203923
    Abstract: The present invention is directed to Packaging Materials and Packaging Articles having a structure composed of a substantially linear, regio-regular functionalized hydrocarbon polymer having C4-C12 hydrocarbon polymer repeating units wherein each unit has at least one functional group uniformly pendent therefrom.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: March 20, 2001
    Assignee: Cryovac, Inc.
    Inventors: Donald Albert Bansleben, Truc-Chi Huynh-Tran, Rusty Lew Blanski, Paul Anthony Hughes, William Peyton Roberts, Robert Howard Grubbs, Galen Richard Hatfield
  • Patent number: 6153714
    Abstract: A new and novel linear, regio-regular vicinal functionalized polymer methods of forming the same are described. The polymer has a linear hydrocarbon polymer backbone with vicinal functional groups having oxygen and/or nitrogen atom containing groups, such as hydroxy, carboxylic acid or ester, carbonyl acetate, amide, nitrile and the like, pendent from the polymer backbone chain in a regio-regular manner.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: November 28, 2000
    Assignee: Cryovac, Inc.
    Inventors: Donald Albert Bansleben, Truc-Chi Thi Huynh-Tran, Rusty Lew Blanski, Paul Anthony Hughes, William Peyton Roberts, Robert Howard Grubbs, Galen Richard Hatfield
  • Patent number: 4792624
    Abstract: 'An improvement is described in the process of preparing polymethylene polyphenyl polyamines by condensing aniline and formaldehyde in the presence of an acid catalyst. The improvement entails adding a minor proportion of a polyamine mixture comprising di(aminophenyl)methanes and oligomeric polymethylene polyphenyl polyamines, collectively known as polymethylene polyphenyl polyamines or polymeric MDA, to an intermediate stage of the condensation reaction where the various intermediately formed aminobenzylamines are present. The process lends itself to either a batch or continuous method for preparing the polyamines.The improvement is actually observed in the polymethylene polyphenyl polyisocyanates derived from the polyamines which have substantially reduced color over those polyisocyanates prepared from polyamines prepared via a prior art method. Such color improvements invariably carry over to polyurethane products derived therefrom.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: December 20, 1988
    Assignee: The Dow Chemical Company
    Inventors: Richard Hatfield, Jr., Howard R. Steele, Nirad N. Shah
  • Patent number: 4465639
    Abstract: Addition of controlled amounts of water to the reaction mixture produced by phosgenation of a mixture of polymethylene polyphenyl polyamines (and like polyamines produced by condensation of formaldehyde and aromatic amines) prior to complete removal of excess phosgene gives rise to the corresponding polymethylene polyphenyl polyisocyanates having significantly improved properties. Not only is the color of the product, and of polyurethane foams prepared therefrom, significantly lighter but the proportion of higher molecular weight products is significantly less and the viscosity is less. No undesirable by-products are introduced into the polyisocyanate as a result of the process.
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: August 14, 1984
    Assignee: The Upjohn Company
    Inventor: Richard Hatfield, Jr.