R William Davis

4 Patents

• US123721242025

  Method for Operating Clutch Elements of a Transmission

  Sigma Powertain, Inc.

  0 cites
• US120443092024

  Method for Determining the Rotational Speed of a Node of a Transmission

  Sigma Powertrain, Inc.

  0 cites
• US118597152024

  Method for Shifting a Transmission of a Vehicle Into Reverse

  Sigma Powertrain, Inc.

  0 cites
• US117885862023

  Method for Engaging and Disengaging Clutch Elements of a Transmission

  Sigma Powertrain, Inc.

  0 cites