H01C 1/1406
Terminals or electrodes formed on resistive elements having positive temperature coefficient
Official title: {Terminals or electrodes formed on resistive elements having positive temperature coefficient}
H01C1/1406 (Terminals or electrodes formed on resistive elements having positive temperature coefficient) appears on 388 US grants and 261 published applications in this corpus.
Search patents in H01C- Granted patents
- 388
- Published applications
- 261
- Assignees
- 117
- Inventors
- 642
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 16 | 0 |
| 1999 | 24 | 0 |
| 2000 | 10 | 0 |
| 2001 | 18 | 5 |
| 2002 | 12 | 18 |
| 2003 | 21 | 17 |
| 2004 | 10 | 17 |
| 2005 | 6 | 11 |
| 2006 | 13 | 15 |
| 2007 | 7 | 9 |
| 2008 | 7 | 1 |
| 2009 | 4 | 4 |
| 2010 | 2 | 5 |
| 2011 | 4 | 5 |
| 2012 | 5 | 5 |
| 2013 | 9 | 8 |
| 2014 | 6 | 11 |
| 2015 | 8 | 5 |
| 2016 | 4 | 11 |
| 2017 | 12 | 7 |
| 2018 | 6 | 10 |
| 2019 | 9 | 15 |
| 2020 | 10 | 12 |
| 2021 | 13 | 13 |
| 2022 | 10 | 13 |
| 2023 | 12 | 15 |
| 2024 | 8 | 10 |
| 2025 | 11 | 14 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite thermistor element28 Jul 2026US 12,695,009 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Electronic component9 Jun 2026US 12,651,683 B2Murata Manufacturing Co., Ltd.
- Surface-mounted polymer PCT overcurrent protection element having small package size14 Apr 2026US 12,603,198 B2Shanghai Wayon Electronics Co., Ltd.
- Over-current protection device10 Mar 2026US 12,573,528 B2Polytronics Technology Corp.
- Low resistance, high voltage and resistance stable PPTC material and manufacturing20 Jan 2026US 12,531,172 B2Littelfuse, Inc.
- Circuit protection device2 Jul 2026US 2026/0188999 A1Smart Electronics Inc.
- Circuit protection device5 Mar 2026US 2026/0066156 A1Fuzetec Technology Co., Ltd.
- Negative temperature coefficient thermistor5 Mar 2026US 2026/0066157 A1Murata Manufacturing Co., Ltd.
- Small package ptc device29 Jan 2026US 2026/0031256 A1Dongguan Littelfuse Electronics Company Limited
- Protection device including ptc and thermal devices29 Jan 2026US 2026/0031257 A1Littelfuse, Inc.
Most cited
By later US patents
- Electrical devices comprising conductive polymers367US 4,882,466 ARaychem Corporation · 1989
- Electrical devices containing conductive polymers133US 4,689,475 ARaychem Corporation · 1987
- Conductive polymer circuit protection devices having improved electrodes132US 4,685,025 ARaychem Corporation · 1987
- PTC element117US 5,382,938 AAsea Brown Boveri AG · 1995
- Layered self-regulating heating article111US 4,177,376 ARaychem Corporation · 1979