Location History:
- Boerne, TX (US) (1986)
- San Antonio, TX (US) (1987)
Company Filing History:
1 out of 9 
1 out of 832,880 Years Active: 1986-1987
Title: Innovations by Joe L Portman, Jr.
Introduction
Joe L Portman, Jr. is an accomplished inventor based in Boerne, TX (US). He has made significant contributions to the field of piezoelectric devices, holding a total of 2 patents. His innovative work focuses on developing advanced weighing devices that utilize piezoelectric technology.
Latest Patents
Portman's latest patents include the "Piezoelectric Weighing Device" and the "Piezoelectric Ratio Weighing Device." The Piezoelectric Weighing Device employs a piezoelectric driver and receiver to determine the absolute weight of an unknown sample by comparing it to a known control sample. The system operates on the leading edge of the resonant frequency, allowing for precise measurements through the application of an oscillating sine wave voltage. The Piezoelectric Ratio Weighing Device, on the other hand, determines the ratio of a second weight to an original weight, enabling the calculation of the percent of mass remaining after part of the original mass is removed.
Career Highlights
Throughout his career, Joe L Portman, Jr. has worked with various companies, including Alcor, Inc. His expertise in piezoelectric technology has positioned him as a notable figure in the field of innovative weighing solutions.
Collaborations
One of his notable collaborators is David J Margraf, with whom he has worked on various projects related to his patents.
Conclusion
Joe L Portman, Jr. continues to push the boundaries of innovation in weighing technology through his patents and collaborations. His contributions have the potential to impact various industries that rely on precise weight measurements.