B29D 11/00721
Involving preforms for the manufacture of light guides
Official title: {involving preforms for the manufacture of light guides}
B29D11/00721 (Involving preforms for the manufacture of light guides) appears on 189 US grants and 200 published applications in this corpus.
Search patents in B29D- Granted patents
- 189
- Published applications
- 200
- Assignees
- 131
- Inventors
- 499
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 4 |
| 2003 | 5 | 9 |
| 2004 | 7 | 10 |
| 2005 | 8 | 13 |
| 2006 | 7 | 4 |
| 2007 | 3 | 4 |
| 2008 | 4 | 4 |
| 2009 | 0 | 5 |
| 2010 | 1 | 6 |
| 2011 | 3 | 1 |
| 2012 | 1 | 1 |
| 2013 | 7 | 5 |
| 2014 | 7 | 19 |
| 2015 | 10 | 14 |
| 2016 | 9 | 16 |
| 2017 | 12 | 14 |
| 2018 | 16 | 7 |
| 2019 | 8 | 12 |
| 2020 | 8 | 6 |
| 2021 | 10 | 14 |
| 2022 | 6 | 11 |
| 2023 | 7 | 5 |
| 2024 | 9 | 6 |
| 2025 | 4 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multi-material polymer filament for three-dimensional printing14 Jul 2026US 12,680,199 B2The United States of America as represented by the Secretary of the Army
- Organically modified chalcogenide polymer preforms and fibers19 May 2026US 12,631,817 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Method of fabrication of compound light-guide optical elements21 Apr 2026US 12,607,796 B2Lumus Ltd.
- Continuously formed optical fiber with different core profile zones9 Dec 2025US 12,493,147 B2Legrand DPC, LLC
- Preparation method for diffractive optical waveguide, diffractive optical waveguide, and imprinting master mold3 Sep 2026US 2026/0257438 A1Shanghai North Ocean Technologies Co., Ltd
- Method of fabrication of compound light-guide optical elements27 Aug 2026US 2026/0251840 A1Lumus Ltd.
- Methods and systems for producing hollow-core preforms, components thereof, and hollow-core optical fibers5 Feb 2026US 2026/0035284 A1Corning Incorporated
- Molded body manufacturing equipment25 Sep 2025US 2025/0296271 A1Kohoku Kogyo Co., Ltd.
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- Binder film for a fiber optic cable50US 8,620,124 B1Corning Cable Systems LLC · 2013
- Optical fiber imaging system49US 6,091,872 A2000