Patents by Inventor Philip Y. Lam

Philip Y. Lam 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).

  • Timepiece glass assembly and a timepiece
    Patent number: 4945523
    Abstract: A timepiece glass assembly (1) is provided having a pair of superimposed, spaced apart, transparent glasses (2, 3) held together round their peripheries by a holding ring (6) in a manner such as to define between the glasses and ring an internal chamber (4). The chamber (4) may contain a fluid such as scent or a medicament and movable objects or particles (5) for decorative effect. The fluid is allowed to escape to the exterior of the chamber (4) via a passage (8) through the holding ring (6) in a manner controlled by a semi-sealing ring (10) which closes off the outer end of the passage (8). The ring (10) absorbs fluid and allows the scent and/or medicament to vaporize therefrom and escape to the exterior of the assembly (1) which may be removably attached to any suitable timepiece such as a wrist watch.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: July 31, 1990
    Inventor: Philip Y. Lam
  • Combined digital wrist watch and thermometer
    Patent number: D270141
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 16, 1983
    Inventor: Philip Y. Lam
  • Combined digital clock and thermomeeter
    Patent number: D270335
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 30, 1983
    Inventor: Philip Y. Lam