For the Inventor, By the Inventor

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Vienna, Austria

Bifocon Optics Gmbh

USPTO Granted Patents = 2

Forward Citations = 305

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2 inventors (with patents filed for the assignee):

Werner Fiala (2 out of 13 patents)

Johann Pingitzer (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6536899 - Multifocal lens exhibiting diffractive and refractive powers (2003-03-25),

2. 6120148 - Diffractive lens (2000-09-19),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#208 in Vienna

#952 in Austria

Vienna, Austria

Bifocon Optics Gmbh

Forward Citations = 305

2 inventors:

Werner Fiala (2 out of 13 patents)

Johann Pingitzer (1 out of 1 patent)

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