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Birkerod, Denmark

Crystal Fibre A/s

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USPTO Granted Patents = 30

% Expired Patents = 43.3

Forward Citations = 1,238

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31 inventors (with patents filed for the assignee):

Jes Broeng (13 out of 21 patents)

Anders Overgaard Bjarklev (10 out of 12 patents)

Philip St John Russell (9 out of 13 patents)

4. Timothy Adam Birks (8 out of 16 patents)

5. Stig Eigil Barkou Libori (7 out of 7 patents)

6. Brian Joseph Mangan (6 out of 9 patents)

7. Jacob Riis Folkenberg (6 out of 6 patents)

8. Guillaume Vienne (6 out of 6 patents)

9. Jonathan Cave Knight (5 out of 18 patents)

10. Peter M W Skovgaard (5 out of 6 patents)

11. David Philip Williams (4 out of 5 patents)

12. Martin Dybendal Nielsen (4 out of 4 patents)

13. Hendrik Sabert (3 out of 12 patents)

14. Peter John Roberts (3 out of 3 patents)

15. Christian Jakobsen (2 out of 29 patents)

Core Competencies:

Optical Fibre

Photonic Bandgap

Hollow-Core

Waveguide

Microstructured

Coupler Devices

Dispersion Properties

Polarization Preserving

Composite Materials

Numerical Aperture

Nonlinear Optical

Fabrication Methods

30 patents: Sort by Forward Citations

1. 7590323 - Optical fibre with high numerical aperture, method of its production, and use thereof (2009-09-15),

2. 7539382 - Hermetically sealed optical fibre with voids or holes, method of its production, and its use (2009-05-26),

3. 7532798 - Optical waveguide (2009-05-12),

4. 7532792 - Optical coupler, a method of its fabrication and use (2009-05-12),

5. 7526165 - Optical coupler devices, methods of their production and use (2009-04-28),

6. 7366388 - Hollow-core optical fiber and method of making same (2008-04-29),

7. 7349611 - Photonic bandgap fibre, and use thereof (2008-03-25),

8. 7346249 - Photonic bandgap optical waveguide with anti-resonant core boundary (2008-03-18),

9. 7327922 - Hermetically sealed optical fibre with voids or holes, method of its production, and its use (2008-02-05),

10. 7321712 - Optical waveguide (2008-01-22),

11. 7305164 - Enhanced optical waveguide (2007-12-04),

12. 7289709 - Photonic crystal fibres comprising stress elements (2007-10-30),

13. 7266275 - Nonlinear optical fibre method of its production and use thereof (2007-09-04),

14. 7245807 - Optical fiber and method for making an optical fiber (2007-07-17),

15. 7224873 - Optical fibres (2007-05-29),

Company Overview

Crystal Fibre A/S specializes in the development and manufacturing of advanced optical fibers and fiber optic components. The company focuses on innovative solutions for various applications, including telecommunications, sensing, and medical technologies. With a commitment to research and development, Crystal Fibre aims to enhance performance and efficiency in fiber optics, catering to a global market. Its expertise in optical technology positions it as a key player in the evolving landscape of photonics and communication systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

30 Patents

#3 in Birkerod

#103 in Denmark

#21,912 in the World

Birkerod, Denmark

Crystal Fibre A/s

Forward Citations = 1,238

31 inventors:

Jes Broeng (13 out of 21 patents)

Anders Overgaard Bjarklev (10 out of 12 patents)

Philip St John Russell (9 out of 13 patents)

4. Timothy Adam Birks (8 out of 16 patents)

5. Stig Eigil Barkou Libori (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Crystal Fibre A/s. Retrieved from https://idiyas.com/company/crystal-fibre-a-s

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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