G02B 6/4486
Protective covering
Official title: {Protective covering}
G02B6/4486 (Protective covering) appears on 557 US grants and 484 published applications in this corpus.
Search patents in G02B- Granted patents
- 557
- Published applications
- 484
- Assignees
- 226
- Inventors
- 1,015
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 3 |
| 2002 | 10 | 8 |
| 2003 | 8 | 8 |
| 2004 | 9 | 10 |
| 2005 | 4 | 5 |
| 2006 | 4 | 8 |
| 2007 | 5 | 4 |
| 2008 | 6 | 6 |
| 2009 | 4 | 12 |
| 2010 | 2 | 8 |
| 2011 | 4 | 10 |
| 2012 | 9 | 7 |
| 2013 | 8 | 19 |
| 2014 | 14 | 17 |
| 2015 | 23 | 37 |
| 2016 | 23 | 26 |
| 2017 | 30 | 27 |
| 2018 | 21 | 27 |
| 2019 | 34 | 43 |
| 2020 | 33 | 32 |
| 2021 | 18 | 33 |
| 2022 | 32 | 37 |
| 2023 | 28 | 26 |
| 2024 | 17 | 30 |
| 2025 | 19 | 24 |
| 2026 | 13 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High density, low diameter cable with rollable fiber optic ribbon6 Oct 2026US 12,754,388 B2Corning Research & Development Corporation
- Quad wheel buffering tube clencher capstan22 Sep 2026US 12,742,943 B2Technical Development Company
- Optical communication bundle and associated optical cable8 Sep 2026US 12,730,275 B2Acome
- Optical fiber cable with welded armor layer8 Sep 2026US 12,730,276 B2Corning Research & Development Corporation
- Overhead ribbon cable, manufacturing method and manufacturing system for overhead ribbon cable21 Jul 2026US 12,687,687 B2Jiangsu Zhongtian Technology Co., Ltd.
- Optical fiber cable and method of manufacturing optical fiber cable10 Sep 2026US 2026/0267102 A1Fujikura Ltd.
- Downhole fiber optic cable designed with improved strain response and designed for long life in the well30 Jul 2026US 2026/0219467 A1Halliburton Energy Services.Inc.
- Apparatus and method for opening a stripwound hose; method for the maintenance and/or repair of a fibre strand in a stripwound hose; use of the apparatus and the methods16 Jul 2026US 2026/0201999 A1
- Optical fiber cable exhibiting low skew16 Jul 2026US 2026/0202635 A1Corning Research & Development Corporation
- Cable, composite cable, and method for manufacturing cable18 Jun 2026US 2026/0169246 A1Proterial, Ltd.
Most cited
By later US patents
- Composite buffer optical fiber cables273US 5,148,509 ACorning Incorporated · 1992
- Fiber optic microcable produced with fiber reinforced ultraviolet light cured resin and method for manufacturing same264US 5,440,660 AThe United States of America as represented by the Secretary of the Navy · 1995
- Foamed fiber optic cable243US 7,873,249 B2ADC Telecommunications, Inc. · 2011
- Optical waveguide with protective tube231US 6,246,821 B1Alcatel · 2001
- Optical cable and method for producing an optical cable221US 8,588,567 B2CCS Technology, Inc. · 2013