G02B 27/4283
Having a diffractive element with major temperature dependent properties
Official title: {having a diffractive element with major temperature dependent properties}
G02B27/4283 (Having a diffractive element with major temperature dependent properties) appears on 76 US grants and 71 published applications in this corpus.
Search patents in G02B- Granted patents
- 76
- Published applications
- 71
- Assignees
- 42
- Inventors
- 95
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 4 |
| 2003 | 5 | 4 |
| 2004 | 6 | 5 |
| 2005 | 3 | 4 |
| 2006 | 4 | 6 |
| 2007 | 4 | 8 |
| 2008 | 4 | 7 |
| 2009 | 8 | 8 |
| 2010 | 9 | 9 |
| 2011 | 6 | 3 |
| 2012 | 5 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Apparatus for spectrally combining broadband laser beams by volume bragg gratings18 Jan 2024US 2024/0019708 A1Ipg Photonics Corporation
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Most cited
By later US patents
- Hybrid refractive/diffractive achromatic camera lens71US 5,715,091 AEastman Kodak Company · 1998
- Optical lens49US 5,299,062 AOMRON Corporation · 1994
- Hybrid refractive/diffractive achromatic camera lens48US 5,543,966 AEastman Kodak Company · 1996
- Optical systems employing stepped diffractive surfaces42US 6,462,874 B1KSM Associates, Inc. · 2002
- Projection optical system and projection exposure apparatus using the same41US 5,636,000 ANikon Corporation · 1997