4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Hongwen Li

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Color-imparting contact lenses with interference coating and met

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Lens molds with protective coatings for production of...

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Including step of mold making
Reexamination Certificate

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Lens molds with protective coatings for production of...

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Reexamination Certificate

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Method for making a tantala/silica interference filter on the su

Coating processes – Electrical product produced – Hollow article
Patent

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Method for making a tantala/silica interference using heat treat

Coating processes – Electrical product produced – Hollow article
Patent

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Profile ID: LFUS-PAI-P-1152367

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