Patents by Inventor Eallan Hirshfeld

Eallan Hirshfeld 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).

  • Patent number: 6425398
    Abstract: An earplug (20) is provided which allows conversation to be conducted whilst inserted in the ear, and blocks out certain noise without substantially sealing the ear canal, and causing discomfort to the wearer. In one embodiment, the earplug includes a first cylindrical element (28) open at one end (30), having a substantially convex shape at its other end (34) for insertion into the outer ear canal, and a second element (32) which fits into the open end of the first cylindrical element to form a connecting juncture therewith. The first and second elements have air circulation means.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: July 30, 2002
    Inventor: Eallan Hirshfeld
  • Patent number: D437048
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: January 30, 2001
    Assignee: Spanish Main Trading Corporation
    Inventor: Eallan Hirshfeld