TREA

Pentalpha Enterprises Ltd.

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  • Aberdeen, HK
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Electric toothbrush
    • Patent number 5,822,821
    • Issue date Oct 20, 1998
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Detachable handle accessory for a portable steam vacuum cleaner
    • Patent number 5,819,364
    • Issue date Oct 13, 1998
    • Pentalpha Enterprises, Ltd.
    • John C. K. Sham
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Electric hair-curling apparatus
    • Patent number 5,810,026
    • Issue date Sep 22, 1998
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Paddle for bread-making machine
    • Patent number 5,771,784
    • Issue date Jun 30, 1998
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Grant

    Electrical deep-fryer
    • Patent number 5,771,781
    • Issue date Jun 30, 1998
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Automatic power interrupting apparatus for an electric appliance
    • Patent number 5,595,672
    • Issue date Jan 21, 1997
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Photosensitive switching apparatus for an electric appliance
    • Patent number 5,463,205
    • Issue date Oct 31, 1995
    • Pentalpha Enterprises Ltd.
    • John C. K. Sham
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...

Patents Applicationslast 30 patents

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