C03B 37/02709
Polarisation maintaining fibres
Official title: {Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres}
C03B37/02709 (Polarisation maintaining fibres) appears on 43 US grants and 20 published applications in this corpus.
Search patents in C03B- Granted patents
- 43
- Published applications
- 20
- Assignees
- 25
- Inventors
- 71
- Latest grant
- 11 Aug 2026
Filings by year
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| 1980 | 1 | 0 |
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| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method11 Aug 2026US 12,704,672 B2Sumitomo Electric Industries, Ltd.
- Infrared-transmitting, polarization-maintaining optical fiber and method for making12 May 2026US 12,623,947 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Polarization maintaining fiber with alignment features26 Aug 2025US 12,399,316 B2Intel Corporation
- Element for a preform, a fiber production method and an optical fiber drawn from the preform24 Sep 2024US 12,098,088 B2Nkt Photonics A/S
- Infrared-transmitting, polarization-maintaining optical fiber and method for making27 Feb 2024US 11,912,606 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Infrared-transmitting, polarization-maintaining optical fiber and method for making27 Aug 2026US 2026/0250178 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Infrared-transmitting, polarization-maintaining optical fiber and method for making20 Jun 2024US 2024/0199468 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method14 Mar 2024US 2024/0085618 A1Sumitomo Electric Industries, Ltd.
- Polarization maintaining fiber with alignment features22 Jun 2023US 2023/0194805 A1Intel Corporation
- Polarization-Maintaining Photonic Crystal Fiber30 Dec 2021US 2021/0405287 A1IRflex Corporation
Most cited
By later US patents
- Photonic crystal fibers57US 6,631,234 B1Blazephotonics Limited · 2003
- Fiber-optic rotation sensor51US 4,697,876 AAndrew Corporation · 1987
- Single-mode, single-polarization optical fiber47US 5,056,888 AMinnesota Mining and Manufacturing Company · 1991
- Stress-induced birefringent single mode optical fiber and a method of fabricating the same41US 4,354,736 AInternational Telephone and Telegraph Corporation · 1982
- Exposed core optical fibers, and method of making same41US 4,630,890 AAT&T Bell Laboratories · 1986