Company Filing History:
2 out of 5,942 
1 out of 832,812 Years Active: 1983-1987
Title: Innovations and Contributions of Gary L Zumwalt
Introduction
Gary L Zumwalt is a notable inventor based in Dallas, TX (US). He has made significant contributions to the field of engineering, particularly in the area of borehole logging and oil recovery methods. With a total of 3 patents to his name, Zumwalt's work has had a meaningful impact on the industry.
Latest Patents
One of his latest patents is a "Borehole logging method for determining the damping of acoustic tube." This invention employs an acoustic transmitter and at least one spaced-apart receiver. The transmitter is excited with a tone burst to cause it to resonate and generate acoustic tube waves. The rate of decay of the amplitudes of the tube waves recorded at the receiver following the termination of the excitation of the transmitter is used to determine the amount of damping of the tube waves in the subsurface formation along the borehole wall.
Another significant patent is the "Method for recovery of oil by means of a gas drive combined with low." This invention relates to a method for recovering oil from a subterranean, viscous oil-containing formation by injecting a gaseous driving fluid such as carbon dioxide into the formation. It also involves recovering oil while simultaneously transmitting vibrations in the seismic frequency range, which enhances the flow of the carbon dioxide and increases the efficiency of oil recovery.
Career Highlights
Gary L Zumwalt has worked with Mobil Oil Corporation, where he applied his innovative ideas to real-world challenges in the oil industry. His experience in this prominent company has allowed him to develop and refine his inventions, contributing to advancements in oil recovery techniques.
Collaborations
Throughout his career, Zumwalt has collaborated with notable professionals such as William L Medlin and Lynn D Mullins. These collaborations have likely enriched his work and led to further innovations in his field.
Conclusion
In summary, Gary L Zumwalt is a distinguished inventor whose work in borehole logging and oil recovery has made a significant impact on the industry. His patents reflect his innovative spirit and dedication to improving engineering practices.