Patents by Inventor Joseph E. Lavaux

Joseph E. Lavaux has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lavaux tear test lacrimal equilibration time (LET)
    Patent number: 5352445
    Abstract: A method for measuring precorneal tear film stability and diagnosing dry and wet eye conditions. The method comprises stressing baseline visual acuity with the installation of a predetermined ophthalmic preparation and measuring the time to recover normal visual acuity. Once baseline visual acuity is regained and sustained, the Lacrimal Equilibration Time (LET) is recorded. LET measures the quality of precorneal tear film stability and is related to the degree of dry and wet eye condition.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: October 4, 1994
    Inventor: Joseph E. Lavaux