G08B 17/103
Using a light emitting and receiving device
Official title: using a light emitting and receiving device
G08B17/103 (Using a light emitting and receiving device) appears on 773 US grants and 617 published applications in this corpus.
Search patents in G08B- Granted patents
- 773
- Published applications
- 617
- Assignees
- 257
- Inventors
- 1,063
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 16 | 0 |
| 1979 | 12 | 0 |
| 1980 | 22 | 0 |
| 1981 | 15 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 19 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 2 |
| 2002 | 10 | 8 |
| 2003 | 6 | 6 |
| 2004 | 8 | 8 |
| 2005 | 2 | 10 |
| 2006 | 7 | 13 |
| 2007 | 8 | 12 |
| 2008 | 5 | 20 |
| 2009 | 10 | 11 |
| 2010 | 14 | 15 |
| 2011 | 9 | 15 |
| 2012 | 9 | 9 |
| 2013 | 10 | 20 |
| 2014 | 22 | 23 |
| 2015 | 40 | 32 |
| 2016 | 22 | 22 |
| 2017 | 30 | 34 |
| 2018 | 22 | 22 |
| 2019 | 17 | 48 |
| 2020 | 33 | 39 |
| 2021 | 51 | 71 |
| 2022 | 42 | 38 |
| 2023 | 53 | 45 |
| 2024 | 37 | 38 |
| 2025 | 40 | 33 |
| 2026 | 20 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Calibration of a heating element in a fire sensing device25 Aug 2026US 12,714,900 B2Honeywell International Inc.
- Systems and methods for blockage detection in gas detectors18 Aug 2026US 12,710,348 B2Detector Electronics Buyer US, LLC
- Optical chamber base with integrated reflective surfaces for particle detection14 Jul 2026US 12,682,738 B2Honeywell International Inc.
- Smoke detector chamber boundary surfaces30 Jun 2026US 12,669,423 B2Analog Devices, Inc.
- Dual-lens smoke detection system23 Jun 2026US 12,664,867 B2Tyco Fire & Security GmbH
- Smoke detection system using a laser beam spectral pattern24 Sep 2026US 2026/0290137 A1Honeywell International Inc.
- Partial open chamber detector17 Sep 2026US 2026/0279179 A1Microchip Technology Incorporated
- Classification Of Particles By Means Of Spectral Analysis10 Sep 2026US 2026/0266707 A1
- Systems and methods for detection and identification of smoke, dust and fog10 Sep 2026US 2026/0266719 A1TORC Robotics, Inc.
- Smoke detector device insect control13 Aug 2026US 2026/0235486 A1Honeywell International Inc.
Most cited
By later US patents
- Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy231US 5,546,074 ASentrol, Inc. · 1996
- Smoke detecting apparatus147US 4,665,311 A1987
- Fast frame synchronization115US 6,501,810 B1Agere Systems Inc. · 2002
- Light scattering smoke detector having conical and concave surfaces110US 4,728,801 AThorn EMI Protech Limited · 1988
- Optical particle detector104US 4,226,533 AGeneral Electric Company · 1980