Assignee
HERAEUS QUARTZ NORTH AMERICA LLC
US·17 granted patents·2 pending applications·9 citations·filing 2014–2024
Top patents by PatentIndex Score
19 records- 0181US10590022B2Formation of elongated glass components with low bow using a gripper deviceHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2015·Granted Mar 17, 2020·2 cites·6 claims
- 0278US11405107B2Upward collapse process and apparatus for making glass preformsHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2017·Granted Aug 2, 2022·1 cites·7 claims
- 0372US11739019B2High-strength welding process for making heavy glass preforms with large cross sectional areasHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2020·Granted Aug 29, 2023·1 cites·8 claims
- 0472US10378996B2Methods and apparatus for determining geometric properties of optical fiber preformsHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2014·Granted Aug 13, 2019·3 cites·20 claims
- 0571US11840472B2Elongation method and preform for producing an optical glass componentHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2021·Granted Dec 12, 2023·0 cites·14 claims
- 0666US12503386B2Inductive furnace with rotating susceptor for high precision waveguide glass drawHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2022·Granted Dec 23, 2025·0 cites·20 claims
- 0765US10388028B2Apparatus and method for measurement of transparent cylindrical articlesHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2014·Granted Aug 20, 2019·2 cites·22 claims
- 0862US12560537B2Ultra low-na refractive index profiling system and method for filtering out severely disturbing diffraction effectsHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2024·Granted Feb 24, 2026·0 cites·16 claims
- 0962US2025340477A1Reduction of multi-core fiber preform geometric distortionHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2023·Application pending·0 cites
- 1061US11811453B2Upward collapse process and apparatus for making glass preformsHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2022·Granted Nov 7, 2023·0 cites·5 claims
- 1160US12422359B2Tomographic refractive index profile evaluation of non-symmetrical glass fiber preforms and fibers themselvesHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2023·Granted Sep 23, 2025·0 cites·15 claims
- 1258US2024217860A1Process of making multi-core fiber preform by integrating core rods and cladding cylinderHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2022·Application pending·0 cites
- 1355US11649185B2Automated large outside diameter preform tipping process and resulting glass preformsHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2020·Granted May 16, 2023·0 cites·16 claims
- 1455US11618708B2Elongation method and preform for producing an optical glass componentHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2017·Granted Apr 4, 2023·0 cites·8 claims
- 1551US11434163B2Variable diameter seal for optical preform furnaceHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2018·Granted Sep 6, 2022·0 cites·20 claims
- 1649US11454580B2Method for preform or tube drawing based on its viscosityHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2014·Granted Sep 27, 2022·0 cites·17 claims
- 1749US10370283B2Method for forming a glass preformHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2015·Granted Aug 6, 2019·0 cites·14 claims
- 1848US11788927B2Evaluation of preforms with non-step-index refractive-index-profile (RIP)HERAEUS QUARTZ NORTH AMERICA LLC·Filed 2021·Granted Oct 17, 2023·0 cites·14 claims
- 1929US10464837B2Method for inserting a core rod into an outer cladding tube with spacerHERAEUS QUARTZ NORTH AMERICA LLC·Filed 2015·Granted Nov 5, 2019·0 cites·15 claims
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