F21S 9/02
The power supply being a battery or accumulator
Official title: the power supply being a battery or accumulator
F21S9/02 (The power supply being a battery or accumulator) appears on 3,118 US grants and 3,466 published applications in this corpus.
Search patents in F21S- Granted patents
- 3,118
- Published applications
- 3,466
- Assignees
- 1,310
- Inventors
- 4,915
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 14 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 15 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 20 | 0 |
| 1990 | 9 | 0 |
| 1991 | 17 | 0 |
| 1992 | 14 | 0 |
| 1993 | 18 | 0 |
| 1994 | 12 | 0 |
| 1995 | 15 | 0 |
| 1996 | 16 | 0 |
| 1997 | 16 | 0 |
| 1998 | 19 | 0 |
| 1999 | 16 | 0 |
| 2000 | 36 | 0 |
| 2001 | 21 | 5 |
| 2002 | 22 | 32 |
| 2003 | 33 | 48 |
| 2004 | 37 | 56 |
| 2005 | 30 | 91 |
| 2006 | 59 | 109 |
| 2007 | 58 | 107 |
| 2008 | 56 | 126 |
| 2009 | 49 | 109 |
| 2010 | 69 | 133 |
| 2011 | 79 | 111 |
| 2012 | 75 | 126 |
| 2013 | 91 | 129 |
| 2014 | 103 | 156 |
| 2015 | 107 | 161 |
| 2016 | 120 | 182 |
| 2017 | 161 | 245 |
| 2018 | 178 | 251 |
| 2019 | 245 | 211 |
| 2020 | 215 | 194 |
| 2021 | 215 | 194 |
| 2022 | 208 | 180 |
| 2023 | 167 | 128 |
| 2024 | 164 | 146 |
| 2025 | 170 | 136 |
| 2026 | 86 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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Most cited
By later US patents
- Lighting units429US 5,890,794 A1999
- Microprocessor based simulated electronic flame422US 5,924,784 A1999
- LED replacement for fluorescent lighting371US 6,860,628 B22005
- Compact, flexible, LED array320US 6,371,637 B1Radiantz, Inc. · 2002
- Wireless emergency safety light with sensing means for conventional light switch or plug receptacle292US 6,010,228 A2000