C03B 37/01217
For making preforms of polarisation-maintaining optical fibres
Official title: {for making preforms of polarisation-maintaining optical fibres (polarisation-maintaining optical fibres per se G02B6/105)}
C03B37/01217 (For making preforms of polarisation-maintaining optical fibres) appears on 80 US grants and 70 published applications in this corpus.
Search patents in C03B- Granted patents
- 80
- Published applications
- 70
- Assignees
- 39
- Inventors
- 191
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 2 |
| 2004 | 4 | 10 |
| 2005 | 3 | 4 |
| 2006 | 4 | 7 |
| 2007 | 6 | 5 |
| 2008 | 6 | 2 |
| 2009 | 1 | 4 |
| 2010 | 3 | 1 |
| 2011 | 1 | 4 |
| 2012 | 2 | 2 |
| 2013 | 5 | 3 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 3 | 4 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 4 |
| 2025 | 0 | 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
- 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
- Polarization controller and method of manufacture5 Apr 2022US 11,294,122 B2Corning Incorporated
- 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
- Controlling refractive index profile during fiber preform manufacturing11 Jul 2024US 2024/0230984 A9Lumentum Operations LLC
- 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
- Controlling refractive index profile during fiber preform manufacturing25 Apr 2024US 2024/0134113 A1Lumentum Operations LLC
- Polarization maintaining optical fiber and polarization maintaining optical fiber manufacturing method14 Mar 2024US 2024/0085618 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Method of producing elliptic core type polarization-maintaining optical fiber241US 5,482,525 AHitachi Cable, Ltd. · 1996
- Nonlinear optical fibre method of its production and use thereof234US 7,266,275 B2Crystal Fibre A/S · 2007
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers222US 8,213,758 B2Imra America, Inc. · 2012
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers219US 8,542,968 B2Imra America, Inc. · 2013
- Photonic crystal fibers57US 6,631,234 B1Blazephotonics Limited · 2003