Patents by Inventor Harold Shlevin

Harold Shlevin 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).

  • Methods and composition for preserving media in the tip of a solution dispenser
    Patent number: 5863562
    Abstract: A container, composition and method for preserving treatment solutions, in which the composition includes weak and strong preservatives. The dispensing container includes media within a dispensing tip which media removes or alters the strong preservative, while allowing the weak preservative to inhibit microbial growth in the tip media. The dispensing container is especially useful in delivering to the ocular environment ophthalmic solutions which are essentially free of strong preservative which may cause patient discomfort. A dispensing container including a pH-preserved pilocarpine solution is disclosed in one embodiment.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: January 26, 1999
    Assignee: CIBA Vision Corporation
    Inventors: Fu-Pao Tsao, Stephen Merritt Martin, Harold Shlevin, Thomas Edward Rowe
  • Container for preserving media in the tip of a solution dispenser
    Patent number: 5611464
    Abstract: A container, composition and method for preserving treatment solutions, in which the composition includes weak and strong preservatives. The dispensing container includes media within a dispensing tip which media removes or alters the strong preservative, while allowing the weak preservative to inhibit microbial growth in the tip media. The dispensing container is especially useful in delivering to the ocular environment ophthalmic solutions which are essentially free of strong preservative which may cause patient discomfort. A dispensing container including a pH-preserved pilocarpine solution is disclosed in one embodiment.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: March 18, 1997
    Assignee: CIBA Geigy Corporation
    Inventors: Fu-Pao Tsao, Stephen M. Martin, Harold Shlevin, Thomas E. Rowe