This inventor holds 1 USPTO granted patent. Top assignee: France Telecom/cnet. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993
Title: Jean-François Teissier and a Patent for Measuring Viscosity.
Introduction
Jean-François Teissier is an inventor associated with Voiron, France. His listed patent work concerns a method for measuring the viscosity of a material through the behavior of a diffraction pattern during heating.
Latest Patents
Teissier is credited with 1 patent: “Method for Measuring the Viscosity of a Material.” The method forms parallel strips of material into a diffraction grating and illuminates them with monochromatic light. The resulting pattern includes a main spot and adjacent diffraction spots arranged in lobes. During rapid heating to a predetermined temperature, the method tracks the intensity of the brightest spot in the first minor lobe. It measures the time until that spot first reaches a minimum intensity, then uses the elapsed time and a stated formula to determine the material’s viscosity.
Career Highlights
The supplied information associates Teissier with France Télécom/CNET. His patent describes an optical measurement approach that links changes in diffraction-spot intensity during a thermal process to the viscosity of the tested material.
Collaborations
Annie Tissier is identified as Teissier’s coworker. The available information does not specify her role in the patent or the work.
Conclusion
Jean-François Teissier’s recorded invention applies diffraction and controlled heating to measure material viscosity, reflecting his patent-related work associated with France Télécom/CNET.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile