This inventor holds 27 USPTO granted patents and 4 EPO patents, primarily in Microelectromechanical Systems. Top assignees: Delphi Technologies, Inc., Delco Electronics Corporation, Gm Global Technolgoy Operations, Inc.. Active years: 1988-2012.
Company Filing History:
20 out of 5,161 
4 out of 788 
1 out of 31,896 
Years Active: 1988-2012
Areas of Expertise:
Title: John Carl Christenson: Innovator and Patent Holder in Microfluidics and Sensor Technology
Introduction
John Carl Christenson, based in Kokomo, Indiana, is a prolific inventor with an impressive portfolio of 27 patents. His innovative contributions primarily focus on microfluidic systems and advanced motion sensing technologies. Christenson's work exemplifies the intersection of engineering and invention, driving advancements in various technological fields.
Latest Patents
Among his most recent patents is a **Microfluidic Valve Structure**. This invention features a valve body designed with a fluid flow passage that enables effective fluid movement. The innovative mechanism includes a valve boss that shifts in relation to a valve seat, facilitating the opening and closing of the flow passage. Flexible support arms stabilize the valve boss, ensuring precise engagement with the valve seat.
Another notable patent is the **Silicon Integrated Angular Rate Sensor**, which presents a novel motion sensor design. This sensor comprises a support substrate and a silicon sensing ring that exhibits flexive resonance. Through the application of electrostatic forces from drive electrodes, the ring resonates, while sensing electrodes detect capacitance changes that indicate vibration modes, effectively sensing motion. The design includes silicon support rings strategically positioned at angles to align with the silicon’s elastic modulus.
Career Highlights
John Christenson has made significant contributions during his tenure with notable companies such as Delphi Technologies, Inc. and Delco Electronics Corporation. His engineering expertise has not only propelled his career forward but has also contributed to the advancement of technologies in the automotive and electronics industries.
Collaborations
Throughout his career, Christenson has collaborated with talented individuals, including Seyed R Zarabadi and Dan W Chilcott. These partnerships have fostered a creative environment where innovative ideas can flourish and lead to groundbreaking inventions.
Conclusion
With a strong portfolio of patents and a commitment to innovation, John Carl Christenson continues to be a key player in the fields of microfluidics and sensor technology. His work not only highlights his inventive spirit but also underscores the importance of collaboration in driving technological advancements.