A61H 2201/0228
Heated by an electric resistance element
Official title: heated by an electric resistance element
A61H2201/0228 (Heated by an electric resistance element) appears on 406 US grants and 643 published applications in this corpus.
Search patents in A61H- Granted patents
- 406
- Published applications
- 643
- Assignees
- 277
- Inventors
- 1,031
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 9 |
| 2003 | 6 | 8 |
| 2004 | 6 | 14 |
| 2005 | 9 | 17 |
| 2006 | 6 | 18 |
| 2007 | 7 | 24 |
| 2008 | 4 | 17 |
| 2009 | 3 | 14 |
| 2010 | 5 | 13 |
| 2011 | 9 | 15 |
| 2012 | 4 | 15 |
| 2013 | 14 | 30 |
| 2014 | 5 | 20 |
| 2015 | 12 | 25 |
| 2016 | 16 | 47 |
| 2017 | 27 | 50 |
| 2018 | 21 | 30 |
| 2019 | 26 | 49 |
| 2020 | 35 | 50 |
| 2021 | 25 | 41 |
| 2022 | 27 | 32 |
| 2023 | 20 | 24 |
| 2024 | 22 | 25 |
| 2025 | 16 | 27 |
| 2026 | 7 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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Most cited
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