The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1998
Filed:
Dec. 26, 1995
Christine Lefrou, Ivry sur Seine, FR;
Didier Perrin, Paris, FR;
Saint-Gobain Vitrage, Courbevoie, FR;
Abstract
A process for electrical power supply of at least one electrically drivable glazing of the electrochromic type for the purpose of causing variation of the state of coloration thereof. An electrical drive circuit includes an electrical connection to connect electrically conductive layers of the glazing to the drive circuit. An electricity generator supplies power to the electrochromic glazing under instruction of a control unit equipped with a user interface, and which utilizes a counter for counting a time and which measures and computes physical characteristics of the drive circuit and of the glazing, including at least measuring the electrical voltage between two distinct points of the electrochromic structure of the glazing, and measuring the electric current and measuring the state of coloration of the glazing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile