F21V 9/20
Dichroic filters, i.e. devices operating on the principle of wave interference to
Official title: Dichroic filters, i.e. devices operating on the principle of wave interference to pass specific ranges of wavelengths while cancelling others
F21V9/20 (Dichroic filters, i.e. devices operating on the principle of wave interference to) appears on 174 US grants and 189 published applications in this corpus.
Search patents in F21V- Granted patents
- 174
- Published applications
- 189
- Assignees
- 135
- Inventors
- 398
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 2 |
| 2003 | 5 | 5 |
| 2004 | 3 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 3 | 6 |
| 2010 | 1 | 5 |
| 2011 | 2 | 7 |
| 2012 | 4 | 8 |
| 2013 | 8 | 16 |
| 2014 | 7 | 6 |
| 2015 | 11 | 7 |
| 2016 | 4 | 5 |
| 2017 | 4 | 12 |
| 2018 | 8 | 7 |
| 2019 | 12 | 12 |
| 2020 | 14 | 15 |
| 2021 | 12 | 12 |
| 2022 | 9 | 11 |
| 2023 | 7 | 13 |
| 2024 | 11 | 10 |
| 2025 | 11 | 14 |
| 2026 | 8 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for generating a single light beam from a plurality of light sources29 Sep 2026US 12,748,315 B2Advanced Entertainment Technologies, Inc.
- Luminaire optical device color compensation28 Jul 2026US 12,692,999 B2Robe Lighting s.r.o.
- Light generating system with CCT-tunable laser2 Jun 2026US 12,644,579 B2Signify Holding B. V.
- Dual-output laser-driven light source17 Mar 2026US 12,578,076 B2Energetiq Technology, Inc.
- Phosphor converted superluminescent diode light source17 Mar 2026US 12,578,078 B2Signify Holding B. V.
- Laser-phosphor engine with rotating converter20 Aug 2026US 2026/0243398 A1Signify Holding B. V.
- Filter for use with laser-pumped light engine30 Jul 2026US 2026/0218881 A1Robe Lighting s.r.o.
- Dual-Output Laser-Driven Light Source9 Jul 2026US 2026/0194209 A1Energetiq Technology, Inc.
- Light-emitting device2 Jul 2026US 2026/0185681 A1ASUSTeK COMPUTER INC.
- A structure for facilitating spectrally selective transformation of light waves23 Apr 2026US 2026/0110418 A1Iyris Technology Ltd
Most cited
By later US patents
- Illuminator assembly incorporating light emitting diodes881US 5,803,579 AGentex Corporation · 1998
- Led assembly631US 6,132,072 AGentex Corporation · 2000
- Mirror assembly483US 5,207,492 AK. W. Muth Company, Inc. · 1993
- Mirror assembly468US 5,361,190 AK. W. Muth Company, Inc. · 1994
- Visual signaling apparatus456US 5,014,167 AK. W. Muth Company, Inc. · 1991