Patents by Inventor Michael Eric Tunstall

Michael Eric Tunstall 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).

  • Anaesthetic mixtures containing enflurane or isoflurane in combination with sevoflurane or desflurane
    Patent number: 5783199
    Abstract: A high pressure pre-mixed analgesic anaesthetic gas composition comprising a life supporting gas and a volatile analgesic anaesthetic mixture; characterised in that the mixture comprises a first and a second anaesthetic analgesic, said first analgesic having blood/gas solubility co-efficient .lambda. significantly in excess of the .lambda. of the second analgesic.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: July 21, 1998
    Assignee: British Technology Group Ltd.
    Inventors: John Alexander Strachen Ross, Michael Eric Tunstall
  • Analgesic anaesthetic compositions
    Patent number: 5690968
    Abstract: An analgesic anaesthetic composition comprising up to 50% v.backslash.v nitrous oxide, the balance being oxygen and another respirable gas; characterized by the addition of an analgesically effective amount of an ether-based analgesic anaesthetic disposed in a single container above its pseudo-critical temperature at a pressure of up to 2000 psi, thereby to form and maintain a homogenous analgesic composition.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: November 25, 1997
    Assignee: Aberdeen University
    Inventors: John Alexander Strachan Ross, Michael Eric Tunstall, Robert Colin Rodgers