US 11,655,383 C1 (12,544th)
Photochromic compositions, markers containing the same, and systems and methods for their use
Andrew Seth Levine, Lutherville, MD (US); Nicole Ann Zujovic, Baltimore, MD (US); and Debora Hense, Plymouth, MI (US)
Filed by JADS INTERNATIONAL LLC, Lutherville, MD (US)
Reexamination Request No. 90/015,257, Jul. 11, 2023.
Reexamination Certificate for Patent 11,655,383, issued May 23, 2023, Appl. No. 16/279,125, Feb. 19, 2019.
Application 90/015,257 is a continuation in part of application No. PCT/US2017/047751, filed on Aug. 21, 2017.
Claims priority of provisional application 62/377,033, filed on Aug. 19, 2016.
Ex Parte Reexamination Certificate issued on Mar. 20, 2024.
Int. Cl. C09D 11/17 (2014.01); A61K 8/72 (2006.01); A61K 8/81 (2006.01); A61K 8/87 (2006.01); A61Q 1/02 (2006.01); C09D 11/50 (2014.01); G01N 21/29 (2006.01)
CPC C09D 11/17 (2013.01) [A61K 8/72 (2013.01); A61K 8/8152 (2013.01); A61K 8/87 (2013.01); A61Q 1/025 (2013.01); C09D 11/50 (2013.01); A61K 2800/438 (2013.01); G01N 21/29 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claim 6 is cancelled.
Claims 2 and 7 are determined to be patentable as amended.
Claims 3-5 and 8-12, dependent on an amended claim, are determined to be patentable.
Claims 1 and 13-18 were not reexamined.
2. A marker comprising an ink composition comprising at least one photochromic pigment or dye, at least one film-forming resin, and at least one solvent in which the at least one photochromic pigment or dye and the at least one film-forming resin are blendable, dispersible or dissolvable, wherein the components of the ink composition are present in respective amounts such that the ink composition is in the form of a liquid or gel until evaporation of the at least one solvent, and wherein, upon evaporation of the at least one solvent, the at least one film-forming resin forms a film that (a) substantially prevents the ink composition from degrading when covered with the sunscreen product and (b) inhibits the ink composition from washing off when the sunscreen is washed off [ , wherein the at least one film-forming resin comprises shellac having an acid number that is between 65-75] .
7. The marker according to claim 2 [ A marker comprising an ink composition comprising at least one photochromic pigment or dye, at least one film-forming resin, and at least one solvent in which the at least one photochromic pigment or dye and the at least one film-forming resin are blendable, dispersible or dissolvable, wherein the components of the ink composition are present in respective amounts such that the ink composition is in the form of a liquid or gel until evaporation of the at least one solvent, and wherein, upon evaporation of the at least one solvent, the at least one film-forming resin forms a film that (a) substantially prevents the ink composition from degrading when covered with the sunscreen product and (b) inhibits the ink composition from washing off when the sunscreen is washed off ] , wherein the film-forming resin comprises the shellac in combination with a second film-former selected from the group consisting of a polyurethane resin, a polyacrylate polymer, silicone polymer or mixtures thereof.