John Robert Wittmaak

3 Patents

• US125592312026

  Tandem Tiltrotor Aircraft

  Textron Innovations, Inc.

  0 cites
• US118141642023

  Active Blade-pitch Change Systems and Methods

  Textron Innovations Inc.

  0 cites
• US117021892023

  Actuated Blade-pitch Change Mechanisms

  Textron Innovations Inc.

  0 cites