Still operating a one man firm developing instruments for sale out of the garage at the current Tavis location.
Tavis Corporation is officially incorporated as a business in Mariposa County. In 1969, transducers cost $200-$1000.
Martin Marietta supplier of the month
Administrative building constructed
TAVIS builds present day main building
John Tavis gets his first patent for the “Variable-Reluctance Transducer,” patent number 4690004
John R. Tavis gets his second patent for the “Very low input power oscillator with improved amplitude stability,” patent number 4947139
TAVIS develops first digital I/O transducer (DISI)
TAVIS gets its third patent for “Integrated Circuit for Transducers,” patent number 5189380
TAVIS gets its fourth patent for “Digital Transducer System including Two Reactive Transducers Forming Resonant Oscillator Circuits,” patent number 5293137
Standard Satellite transducer created
John R. Tavis memorial plaque erected
Engineering Environmental Test Lab constructed
TAVIS opened a high volume facility to produce pressure transducers for a large fleet of military aircraft. This facility produced about 50 units a month.
Mars InSight landed on Mars with the purpose to help scientists understand the formation and early evolution of all rocky planets. Upon the auxiliary payload sensor subsystem sits the Temperature and Wind for InSight instrument(TWINS). InSight’s atmospheric pressure sensor sits inside the lander, with access to the atmosphere via an inlet on the lander deck. TAVISCorporation, Mariposa, California, built it. The device has more than 10-fold greater sensitivity to pressure variations at seismic frequencies than similar pressure sensors on NASA’s Viking and Mars Pathfinder landers
James Webb telescope launches. TAVIS transducers helped to make this possible.














