Patents by Inventor William B. Farnham

William B. Farnham 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: 6538083
    Abstract: This invention concerns a process for the use of hydrogen halides as chain transfer agents in fluoroolefin polymerization.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 25, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William B Farnham, Robert C Wheland
  • Publication number: 20020110735
    Abstract: Rechargeable lithium or lithium-ion electrochemical cells having unmodified natural or synthetic graphite anodes in contact with propylene carbonate or butylene carbonate electrolyte solvent are enabled by the addition of tetra- or pentafluorobenzenes having electron-donating substituents on the ring. Both reversible fraction and cycle life are favorably affected.
    Type: Application
    Filed: December 18, 2000
    Publication date: August 15, 2002
    Inventors: William B. Farnham, Feng Gao, Lech Wilczek
  • Patent number: 6351953
    Abstract: A container having a container body, a thermic module at one end of the body, and a closure at the other end of the body initiates an internal exothermic (or, alternatively, endothermic) chemical reaction to heat its contents when a user actuates the thermic module. A plastic thermic module body is spin-welded to a plastic container body by rotating one relative to and in contact with the other. The container body has multiple layers, including an inner layer such as a so-called oxygen barrier layer that inhibits oxidation and spoilage of the contents, and spin-welding the container body to the module body seals the otherwise-exposed oxygen barrier layer against air or moisture intrusion. The container includes a rotatable cover adhered to the container end over the closure with heat-sensitive adhesive that prevents a user from accessing the contents until a certain temperature is reached.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: March 5, 2002
    Inventors: James A. Scudder, James L. Berntsen, William B. Farnham, Dan Gibbs, Ann T. Davern, Jerine J. Rosato, Michael S. Slocum
  • Patent number: 6266879
    Abstract: A container having a container body, a thermic module at one end of the body, and a closure at the other end of the body initiates an internal exothermic (or, alternatively, endothermic) chemical reaction to heat its contents when auser actuates the thermic module. A plastic thermic module body is spin-welded to a plastic container body by rotating one relative to and in contact with the other. The container body has multiple layers, including an inner layer such as a so-called oxygen barrier layer that inhibits oxidation and spoilage of the contents, and spin-welding the container body to the module body seals the otherwise-exposed oxygen barrier layer against air or moisture intrusion. The container includes a rotatable cover adhered to the container end over the closure with heat-sensitive adhesive that prevents a user from accessing the contents until a certain temperature is reached.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: July 31, 2001
    Assignee: Ontro, Inc.
    Inventors: James A. Scudder, James L. Berntsen, William B. Farnham, Dan Gibbs, Ann T. Davern, Jerine J. Rosato, Michael S. Slocum
  • Patent number: 6146040
    Abstract: An apparatus for cleaning an article such as a baby bottle includes a handle that is sized and configured to be gripped in one hand of a user, and a reservoir defined within the handle for storing a detergent. A push-pull cap is provided on the handle for dispensing detergent from the reservoir when the handle is squeezed. A brush is connected to the handle, and is sized and configured so as to be able to fit into an open end of a baby bottle to scrub the baby bottle during cleaning. The push-pull cap is advantageously located on a portion of the handle member that is remote from the brush member, so that a user will be able to dispense detergent and scrub without putting down the apparatus, and also have the flexibility to scrub without fear of unwanted detergent leaking into the brush, such as during a final rinse. A novel brush configuration is also disclosed.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 14, 2000
    Assignee: Munchkin, Inc.
    Inventors: Steven B. Dunn, William B. Farnham, Tor H. Petterson
  • Patent number: 5637663
    Abstract: Disclosed herein are novel amorphous tetrafluoroethylene-hexafluoropropylene (TFE-HFP) dipolymers, and other copolymers containing TFE, HFP and a third monomer, many of which are more random than previous amorphous TFE-HFP copolymers, as well as a novel high productivity continuous process for making these polymers. The polymers are particularly useful in the form of coatings, films and encapsulants.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: June 10, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Colin Anolick, Viacheslav A. Petrov, Bruce E. Smart, Charles W. Stewart, Robert C. Wheland, William B. Farnham, Andrew E. Feiring, Weiming Qiu
  • Patent number: 5563235
    Abstract: Fluorinated aldehydes are made by reacting a fluorinated acyl chloride with a silicon hydride in the presence of palladium. Also disclosed are fluorinated ether aldehydes and their polymers, a process for making fluorinated aldehydes polymers using titanium or aluminum alkoxide catalysts, and a process for endcapping fluorinated polymers using perfluoroallyl fluorosulfate or fluorine.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: October 8, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5545769
    Abstract: A process is disclosed for the manufacture of product compounds of the formula HC(R.sup.1).sub.2 C(R.sup.1).sub.2 C(R.sup.2).sub.2 H wherein each R.sup.1 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f and OC(O)R.sup.f where R is a hydrocarbyl group and R.sup.f is a C.sub.1 to C.sub.10 polyfluoroalkyl group, provided that at least one R.sup.1 is F, and wherein each R.sup.2 is independently selected from the group consisting of H, F, Cl, CN, R, OR, CO.sub.2 R, C(O)R, OC(O)R, R.sup.f, OR.sup.f, CO.sub.2 R.sup.f, C(O)R.sup.f, OC(O)R.sup.f and difunctional linkages where an R.sup.2 group on each of two adjacent carbon atoms together form a link selected from the group consisting of --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH(CH.sub.3)--, --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, --C(O)OC(O)--, and norborndiyl.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: August 13, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ralph T. Baker, Richard P. Beatty, William B. Farnham, Robert L. Wallace, Jr.
  • Patent number: 5512652
    Abstract: Fluorinated aldehydes are made by reacting a fluorinated acyl chloride with a silicon hydride in the presence of palladium. Also disclosed are fluorinated ether aldehydes and their polymers, a process for making fluorinated aldehydes polymers using titanium or aluminum alkoxide catalysts, and a process for endcapping fluorinated polymers using perfluoroallyl fluorosulfate or fluorine.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: April 30, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5457215
    Abstract: A reaction of perfluoroolefins with bis(silyl) ethers to produce novel partially fluorinated and perfluorinated copolymers and macrocyclic compounds is disclosed.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: October 10, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William B. Farnham, Mario J. Nappa
  • Patent number: 5414140
    Abstract: Fluorinated aldehydes are made by reacting a fluorinated acyl chloride with a silicon hydride in the presence of palladium. Also disclosed are fluorinated ether aldehydes and their polymers, a process for making fluorinated aldehydes polymers using titanium or aluminum alkoxide catalysts, and a process for endcapping fluorinated polymers using perfluoroallyl fluorosulfate or fluorine.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: May 9, 1995
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5391796
    Abstract: A two step process, each of the steps being novel, for the production of trifluorovinyl ethers by reaction of a siloxane with selected acyl fluorides or carboxylic anhydrides, is disclosed. Also disclosed is a novel silyl ester intermediate.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: February 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5347058
    Abstract: Fluorinated olefins are produced by thermolysis of a silyl ester of a fluorinated aliphatic carboxylic acid in the presence of a catalyst which provides fluoride ion, such as potassium fluoride. The fluorinated olefins are useful as monomers and chemical intermediates.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: September 13, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5286825
    Abstract: Partially fluorinated compounds of specified formulas that are useful as chemical intermediates and monomers are disclosed. Partially fluorinated polymers prepared from one of these compounds are also disclosed. Fluoro-2,2-dimethyldioxolanes and copolymers thereof are further disclosed.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: February 15, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Douglas R. Anton, William B. Farnham, Ming-Hong Hung, Ronald J. McKinney, Paul R. Resnick
  • Patent number: 5268511
    Abstract: A two step process, each of the steps being novel, for the production of trifluorovinyl ethers by reaction of a siloxane with selected acyl fluorides or carboxylic anhydrides, is disclosed. Also disclosed is a novel silyl ester intermediate.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: December 7, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Farnham
  • Patent number: 5243025
    Abstract: A reaction of perfluoroolefins with bis(silyl) ethers to produce novel partially fluorinated and perfluorinated copolymers and macrocyclic compounds is disclosed.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: September 7, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William B. Farnham, Mario J. Nappa
  • Patent number: 5233058
    Abstract: Partially fluorinated compounds of specified formulas that are useful as chemical intermediates and monomers are disclosed. Partially fluorinated polymers prepared from one of these compounds are also disclosed. Fluoro-2,2-dimethyldioxolanes and copolymers thereof are further disclosed.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: August 3, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Douglas R. Anton, William B. Farnham, Ming-Hong Hung, Ronald J. McKinney
  • Patent number: 5210233
    Abstract: Novel hydroxy containing fluorovinyl ethers, polymers of hydroxy containing fluorovinyl ethers, novel cyclic ethers, copolymers of selected hydroxy containing fluorovinyl ethers, a process for reducing ester containing fluorovinyl compounds to the corresponding alcohol with borohydrides, and a process for polymerizing hydroxy containing fluorovinyl ethers are disclosed.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: May 11, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William B. Farnham, Ming-Hong Hung
  • Patent number: 5185421
    Abstract: Disclosed are fluorinated macromonomers containing one or more hydroxy groups, which are useful as monomers in other polymerization. Also disclosed are processes and an intermediate for making such macromonomers, and condensation and free radically made polymers which contain the macromonomers. The macromonomers are useful for modifying the properties of the polymers into which they are incorporated.
    Type: Grant
    Filed: August 5, 1991
    Date of Patent: February 9, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gordon M. Cohen, William B. Farnham, Andrew E. Feiring
  • Patent number: D404839
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: January 26, 1999
    Assignee: Rayovac Corporation
    Inventors: Tor H. Petterson, William B. Farnham