Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028006 | Ultralow expansion titania-silica glass | Sezhian Annamalai, Kenneth Edward Hrdina, William Rogers Rosch | 2021-06-08 |
| 10464840 | Near infrared shielding and laser-resistant window | Sezhian Annamalai, Steven Bruce Dawes, Jesse Kohl | 2019-11-05 |
| 10458936 | Apparatus and method for the determination of the absolute coefficient of thermal expansion in ultralow expansion materials | — | 2019-10-29 |
| 10329184 | Ultralow expansion titania-silica glass | Sezhian Annamalai, Kenneth Edward Hrdina, William Rogers Rosch | 2019-06-25 |
| 10017413 | Doped silica-titania glass having low expansivity and methods of making the same | Sezhian Annamalai, Kenneth Edward Hrdina, Lisa Anne Moore | 2018-07-10 |
| 9932261 | Doped ultra-low expansion glass and methods for annealing the same | Sezhian Annamalai, Steven Bruce Dawes, Kenneth Edward Hrdina, William Rogers Rosch, Bryan Ray Wheaton | 2018-04-03 |
| 9890071 | Ultralow expansion glass | — | 2018-02-13 |
| 9822030 | Ultralow expansion titania-silica glass | Sezhian Annamalai, Kenneth Edward Hrdina, William Rogers Rosch | 2017-11-21 |
| 9611169 | Doped ultra-low expansion glass and methods for making the same | Sezhian Annamalai, Kenneth Edward Hrdina | 2017-04-04 |
| 9580350 | High hydroxyl TiO2-SiO2 glass | Sezhian Annamalai, Kenneth Edward Hrdina | 2017-02-28 |
| 9505649 | Ultralow expansion glass | — | 2016-11-29 |
| 9382150 | Boron-doped titania-silica glass having very low CTE slope | Sezhian Annamalai, Kenneth Edward Hrdina | 2016-07-05 |
| 9382151 | Low expansion silica-titania articles with a Tzc gradient by compositional variation | William Robert Angell, IV, Sezhian Annamalai, John Edward Maxon | 2016-07-05 |
| 8901019 | Very low CTE slope doped silica-titania glass | Seshian Annamalai, Kenneth Edward Hrdina | 2014-12-02 |
| 8713969 | Tuning Tzc by the annealing of ultra low expansion glass | Kenneth Edward Hrdina | 2014-05-06 |
| 8596094 | Synthetic silica glass with uniform fictive temperature | Kenneth Edward Hrdina, Ulrich Wilhelm Heinz Neukirch | 2013-12-03 |
| 8541325 | Low expansivity, high transmission titania doped silica glass | Kenneth Edward Hrdina, Michael Mueller | 2013-09-24 |
| 8328417 | Photoelastic method for absolute determination of zero CTE crossover in low expansion silica-titania glass samples | — | 2012-12-11 |
| 8263511 | High purity fused silica with low absolute refractive index | Richard Michael Fiacco, Kenneth Edward Hrdina, Daniel R. Sempolinski | 2012-09-11 |
| 7839509 | Method of measuring deep trenches with model-based optical spectroscopy | Peter Rosenthal, Alexei Maznev, Alexander Mazurenko | 2010-11-23 |
| 7428118 | LTM compensation methods and systems for magnetic servo writing | — | 2008-09-23 |
| 6704103 | Coatings for sensitivity enhancement of signal from glass disks | Rui-fang Shi | 2004-03-09 |
| 6687008 | Waveguide based parallel multi-phaseshift interferometry for high speed metrology, optical inspection, and non-contact sensing | David R. Peale, Harald F. Hess | 2004-02-03 |
| 6184992 | Apparatus and method for measuring flying height and a real index of refraction | Rui-fang Shi | 2001-02-06 |
| 6184993 | Apparatus for measuring a small gap using a Savart plate | Kenneth H. Womack | 2001-02-06 |