4. Optical: systems and elements
  5. Light interference
  6. Produced by coating or lamina

Ronnie Paul Varghese

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Films for optical use and methods of making such films

Optical: systems and elements – Lens – Selective wavelength transmitting or blocking
Reexamination Certificate

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Methods to make diffractive optical elements

Optical: systems and elements – Lens – With multipart element
Reexamination Certificate

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Multilayer optical filter

Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate

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Multilayer optical filter

Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2407905

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