Patents by Inventor John R. Hendrickson

John R. Hendrickson 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).

  • Convertible deer cart
    Patent number: 8256794
    Abstract: A hand-propelled or vehicle-towed convertible deer cart incorporates side walls that are locked vertically when collapsed to a first geometry of very small size for storage and transport, and also when readily reconfigured for use as a larger transport cart or trailer. When further reconfigured for use as a hunting stand, the side walls are pivoted from vertical to horizontal and form a part of a larger platform in combination with the cart bed. A pair of ladders may be stored within the cart bed when configured as a transport cart. The ladders are pivoted about their longitudinal axis to convert to the larger transport cart, and then extended to full-length ladders in the hunting stand geometry.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 4, 2012
    Inventors: Roger A. Burton, John R. Hendrickson
  • Convertible deer cart
    Patent number: 7967325
    Abstract: A hand-propelled or vehicle-towed convertible deer cart incorporates side walls that are locked vertically when collapsed to a first geometry of very small size for storage and transport, and also when readily reconfigured for use as a larger transport cart or trailer. When further reconfigured for use as a hunting stand, the side walls are pivoted from vertical to horizontal and form a part of a larger platform in combination with the cart bed. A pair of ladders may be stored within the cart bed when configured as a transport cart. The ladders are pivoted about their longitudinal axis to convert to the larger transport cart, and then extended to full-length ladders in the hunting stand geometry.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: June 28, 2011
    Inventors: Roger A. Burton, John R. Hendrickson
  • Multi-nodal meeting planning system and method
    Publication number: 20020046076
    Abstract: The multi-nodal meeting planning system and method provides tools and capabilities that allow persons involved in planning, supporting, or participating in a meeting to design, prepare, operate, and assess the results of, a group meeting. The system uses at least one local node (110), at least one Remote Node (150), a distributed architecture, security, and data validation procedures tailored to the meeting planning industry.
    Type: Application
    Filed: September 14, 2001
    Publication date: April 18, 2002
    Inventors: Daniel G. Baillargeon, John R. Hendrickson, Roxann M. Hendrickson
  • Castable composite explosive compositions containing a mixture of trinitrobenzene and trinitroxylene
    Patent number: 3994756
    Abstract: Castable composite explosive compositions contain a fusible matrix of about 0 to 95% by weight of trinitrobenzene and about 5 to 20% by weight of trinitroxylene and a particulate explosive melting substantially higher than said mixture.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: November 30, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John R. Hendrickson, Sr., Franklin B. Wells