Patents by Inventor Daniel Scott Tyson

Daniel Scott Tyson 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).

  • Process for producing naphthalimide diester fluorescent dyes and compositions thereof
    Patent number: 9845390
    Abstract: Provided are processes for producing fluorescent naphthalimide diesters of Formula (I), useful as fluorescent tracer dyes for fluid system leak detection, wherein each of R1 and R2 is, independently of the other, a saturated, linear hydrocarbon chain having from 2 to 10 carbon atoms; and each of Z1 and Z2 is, independently of the other, a fatty acid moiety having a saturated or unsaturated, linear or branched, hydrocarbon chain having from 8 to 24 carbon atoms, and from 0 to 4 double bonds. Also provided are compositions of the aforesaid diesters of Formula (I).
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: December 19, 2017
    Assignee: Spectronics Corporation
    Inventor: Daniel Scott Tyson