Company Filing History:
4 out of 290 
1 out of 152 
Years Active: 1989-2003
Title: The Innovations of Richard Ratke
Introduction
Richard Ratke is a notable inventor based in Dearborn, Michigan. He has made significant contributions to the field of automotive technology, holding a total of five patents. His work focuses on enhancing the functionality and safety of vehicle systems.
Latest Patents
One of Ratke's latest patents is a method of testing switch design to quantify feel. This innovative method examines the second derivative of the resistance force to movement, which is crucial for understanding the operator's experience when using the switch. By minimizing the second derivative at various locations, Ratke provides valuable feedback for improving switch design. Another significant patent is for a solenoid system designed for a brake/shift interlock in vehicles. This system includes a shift mechanism for automatic transmissions and ensures that the vehicle remains secure when in the 'Park' position. The solenoid applies a tensioning force to the Park/Lock member, enhancing the safety features of the vehicle.
Career Highlights
Throughout his career, Ratke has worked with prominent companies in the automotive industry, including United Technologies Automotive Inc. and Lear Automotive Dearborn, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas.
Collaborations
Ratke has collaborated with several professionals in his field, including Donald E. Ellison and Jonathan Dahlstrom. These partnerships have contributed to the advancement of his projects and patents.
Conclusion
Richard Ratke's contributions to automotive technology through his patents and collaborations highlight his innovative spirit and dedication to improving vehicle safety and functionality. His work continues to influence the industry and inspire future inventors.