Patents by Inventor John P. Hogan

John P. Hogan 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).

  • Homohedral construction employing icosahedron
    Patent number: 3953948
    Abstract: Homohedral construction is a building and truss system based on the regular icosahedron. It is analogous to the standard building or truss system based on the cube, which is characterized by 90.degree. corners and edges on its struts and planar surfaces.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: May 4, 1976
    Inventor: John P. Hogan
  • Homohedral module
    Patent number: 3950888
    Abstract: The module is a geometric toy block that is designed to imitate the icosahedron's unique ability for three-dimensional intersection with another icosahedron so that a pentangular co-planar line segment that defines the convex pentangular co-planar edge on each icosahedron is shared by both along with a ten faced convex polyhedron.
    Type: Grant
    Filed: October 29, 1974
    Date of Patent: April 20, 1976
    Inventor: John P. Hogan
  • Silane adjuvant for chromium oxide catalyst
    Patent number: 3939137
    Abstract: Olefins are polymerized with a catalyst which forms on mixing a supported chromium oxide composite and a silane adjuvant. This system allows the production of polymer of a given melt index at a higher temperature, thus increasing the production rate and is of particular utility in solution polymerizations designed to produce ethylene polymers and copolymers.
    Type: Grant
    Filed: November 22, 1974
    Date of Patent: February 17, 1976
    Assignee: Phillips Petroleum Company
    Inventors: John P. Hogan, Benny E. Nasser, Joseph A. Delap