Patents by Inventor Peter A. Hackett

Peter A. Hackett 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).

  • Production of carbonyl fluoride
    Patent number: 4447304
    Abstract: A method of producing carbonyl fluoride by multiphoton decomposition of carbon dioxide-sulphur hexafluoride mixtures comprising irradiating gaseous carbon dioxide-sulphur hexafluoride mixtures in a reaction chamber at a pressure in the 10-50 Torr range with a laser beam at a frequency of about 944 wavenumbers and passing the material from the reaction chamber after irradiation through a chemical processing stage to obtain a carbonyl fluoride product.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: May 8, 1984
    Assignee: Canadian Patents & Development Limited
    Inventors: Vincenzo Malatesta, Clive Willis, Peter A. Hackett
  • Laser production of carbon-13 based on CF.sub.2 HCl
    Patent number: 4436709
    Abstract: A method of producing carbon-13 using CF.sub.2 HCl as the feedstock (substrate) material in which the CF.sub.2 HCl is enriched up to a first level of C-13 by I.R. laser photodissociation and then to 90-99% C-13 by a second exchange process. In the preferred arrangement the second stage is a chemical exchange process.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: March 13, 1984
    Assignee: Canadian Patents & Development Limited
    Inventors: Michel Gauthier, Peter A. Hackett, Clive Willis
  • Method of production of vitamin-D
    Patent number: 4388242
    Abstract: A method of upgrading a product containing a minor proportion of pre-vitamin d.sub.2 or pre-vitamin d.sub.3 and a major proportion of tachysterol comprising irradiating the product with laser light in the wavelength range 330-360 nanometers to obtain a product containing approximately 95% pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3, and heating this product to convert the pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3 to vitamin -D.sub.2 or vitamin -D.sub.3.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: June 14, 1983
    Assignee: Canadian Patents & Development Limited
    Inventors: Vincenzo Malatesta, Clive Willis, Peter A. Hackett
  • Method of producing carbon-13 by multiphoton decomposition of C.sub.3 F.sub.
    Patent number: 4328078
    Abstract: A method of producing carbon--13 by multiphoton decomposition of C.sub.3 F.sub.6, said material containing carbon--12 and carbon--13 isotopic species, comprising irradiating gaseous C.sub.3 F.sub.6 in a reaction chamber at a pressure below 10 Torr with a laser beam at a frequency in the range of 950 to 1020 wavenumbers and providing a minimum fluence of 1 joules per sq. cm. and passing the material through a physical separation stage to obtain a .sup.13 C.sub.2 F.sub.4 product.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: May 4, 1982
    Inventors: Peter A. Hackett, Wing S. Nip, Clive Willis