Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3

Optical and ophthalmic glass with refractive indices greater than or equal to 1.56, Abbe numbers greater than or equal to 40 and densities less than or equal to 2.70 g/cm.sup.3

US Patent 4719186 · Granted Jan 12, 1988

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Highly refractive thin glasses2017
Method for producing an optical splitter cascade and optical assembly2015
Optical glass2015
Lead-containing space glass, its production and its use2013
Lead-containing space glass, its production and use2013
Optical glass, optical elements made therefrom, method of making the optical ele2013
Method and device for melting glass using an induction-heated crucible with cool2008
Methods for making wafers with low-defect surfaces, wafers obtained thereby and 2008
Lead- and arsenic-free optical lanthanum flint glasses2007
Method of growing hexagonal single crystals and use of same as substrates for se2007
Method and apparatus for measuring the position of a phase interface during crys2005
Cadmium-free optical steep edge filters2005