Patents by Inventor James F. Drake, Jr.

James F. Drake, Jr. 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).

  • Ballistic projectile
    Patent number: 4664664
    Abstract: Ballistic projectiles for subsonic propulsion having a helically twisted body portion nad a tapered nose portion and having an apparent density of up to 5 g/cm.sup.3. The projectiles can be propelled through barrels having a complementary barrel without objectionable fouling.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: May 12, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: James F. Drake, Jr.
  • Solid dose ballistic projectile
    Patent number: 4326524
    Abstract: A solid dose ballistic projectile formed entirely of a cohesive mixture comprising biologically active material, in the form of grindable solid particles having an average diameter between about 7 and 25 micrometers, and biologically inert binder, and capable of withstanding the stresses imparted thereon when the projectile is propelled ballistically from a barrel and implanted in the flesh of a living animal.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: April 27, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Drake, Jr., G. Phillip Rambosek
  • Ballistic animal implant
    Patent number: 3948263
    Abstract: Ballistically implantable projectile adapted to carry biologically active materials into a living animal body and thereafter to provide sustained release of said biologically active material into said living animal body.
    Type: Grant
    Filed: August 14, 1974
    Date of Patent: April 6, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Drake, Jr., Fred R. Paul, Jr.