Patents by Inventor Christopher C. Pierce

Christopher C. Pierce 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).

  • Aircraft and planetary gear systems
    Patent number: 9709136
    Abstract: Planetary gear systems, transmissions, and apparatuses include a plurality of compound planet gears, each having three gear stages, a first non-fixed annular gear, a second non-fixed annular gear, a fixed annular gear, and a non-fixed sun gear. A rotational input to the non-fixed sun gear results in opposite rotational outputs of the first non-fixed annular gear and the second non-fixed annular gear. Compound planet gears and carriers for planetary gear systems are also disclosed.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 18, 2017
    Assignee: The Boeing Company
    Inventors: Scott Hendrik Bouwer, Christopher C. Pierce, Mark Joseph Robuck
  • AIRCRAFT AND PLANETARY GEAR SYSTEMS
    Publication number: 20150354672
    Abstract: Planetary gear systems, transmissions, and apparatuses include a plurality of compound planet gears, each having three gear stages, a first non-fixed annular gear, a second non-fixed annular gear, a fixed annular gear, and a non-fixed sun gear. A rotational input to the non-fixed sun gear results in opposite rotational outputs of the first non-fixed annular gear and the second non-fixed annular gear. Compound planet gears and carriers for planetary gear systems are also disclosed.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 10, 2015
    Applicant: The Boeing Company
    Inventors: Scott Hendrik Bouwer, Christopher C. Pierce, Mark Joseph Robuck