Patents by Inventor Peter W. Ramwell

Peter W. Ramwell 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: 5147856
    Abstract: A method for inhibiting blood vessel blockage in a mammal particularly after a procedure such as angioplasty, an arterial bypass operation or an allograft transplant operation which comprises: administering to a mammal before, during and/or after the procedure an effective blood vessel blockage inhibiting amount of an octapeptide having the formula ##STR1## wherein each A.sub.1 and A.sub.2, independently, is H, C.sub.1-12 alkyl, C.sub.7-10 phenylalkyl, R.sub.1 CO (where R.sub.1 is C.sub.1-20 alkyl, C.sub.3-20 alkenyl, C.sub.3-20 alkinyl, phenyl, naphthyl, or C.sub.7-10 phenylalkyl), or R.sub.2 OCO (where R.sub.2 is C.sub.1-10 alkyl or C.sub.7-10 phenylalkyl), provided that when one of A.sub.1 or A.sub.2 is R.sub.1 CO or R.sub.2 OCO, the other must be H; A.sub.3 is CH.sub.2 A.sub.6 (where A.sub.6 is pentafluorophenyl, naphthyl, pyridyl, or phenyl); A.sub.4 is o-, m- or, more preferably, p-substituted X-Phe (where X is a halogen, H, NH.sub.2, NO.sub.2, OH , or C.sub.1-13 alkyl), pentafluoro-Phe, or .beta.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: September 15, 1992
    Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)
    Inventors: Peter W. Ramwell, Pierre Braquet
  • Patent number: 5047354
    Abstract: This invention is directed to the use of thromboxane as an early indicator for coronary artery thrombosis (acute myocardial infarction), and assays for detecting thromboxane B.sub.2 or a metabolite of TXB.sub.2 or TXA.sub.2.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: September 10, 1991
    Inventors: Marie L. Foegh, Peter W. Ramwell
  • Patent number: 5002965
    Abstract: A living tissue or living cell preservation solution comprising an effective amount of a ginkgolide to reduce reperfusion injury in living tissue which has been stored therein and a substance or mixture or substances present in an amount sufficient to produce an osmotic pressure in said solution approximately equal to the osmotic pressure or mammalian cell and a method for preventing or reducing reperfusion injury in transplanted mammalian organs, which comprises contacting an organ prior to reperfusion with an effective amount of a ginkgolide to reduce reperfusion injury in said organ.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: March 26, 1991
    Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)
    Inventors: Peter W. Ramwell, Marie L. Foegh
  • Patent number: 3993057
    Abstract: An intrauterine device for administering drug locally to the uterus at a controlled rate for a prolonged period of time is disclosed. The device contains a body of polymer capable of bioeroding in the environment of the uterus over a prolonged period of time. This body has the drug dispersed throughout so that as the body gradually bioerodes, it slowly releases the dispersed drug. In a preferred embodiment, the device releases a uterine contraction-inducing prostaglandin locally to the uterus at a controlled rate over a prolonged period of time.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: November 23, 1976
    Assignee: Alza Corporation
    Inventor: Peter W. Ramwell
  • Patent number: 3932656
    Abstract: Polymeric materials having at least one exposed surface rendered as a release means for platelet aggregation inhibiting agent by serving as a reservoir for release of aggregation inhibiting prostaglandin. The polymeric surface can also be both platelet aggregation agent releasing and non-thrombogenic agent releasing by having together on the polymeric surface an aggregation inhibiting prostaglandin and an anti-coagulant which are easily released from the surface when in close contact with the blood, plasma or platelets.
    Type: Grant
    Filed: December 20, 1973
    Date of Patent: January 13, 1976
    Assignee: ALZA Corporation
    Inventors: Peter W. Ramwell, Hideo Shio, Jane E. Shaw