B41J 2/3353
Protective layers
Official title: {Protective layers}
B41J2/3353 (Protective layers) appears on 199 US grants and 133 published applications in this corpus.
Search patents in B41J- Granted patents
- 199
- Published applications
- 133
- Assignees
- 58
- Inventors
- 317
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 1 |
| 2002 | 8 | 6 |
| 2003 | 5 | 4 |
| 2004 | 5 | 3 |
| 2005 | 1 | 4 |
| 2006 | 5 | 3 |
| 2007 | 3 | 3 |
| 2008 | 1 | 1 |
| 2009 | 3 | 8 |
| 2010 | 7 | 8 |
| 2011 | 7 | 3 |
| 2012 | 7 | 2 |
| 2013 | 2 | 6 |
| 2014 | 4 | 2 |
| 2015 | 3 | 5 |
| 2016 | 7 | 8 |
| 2017 | 7 | 7 |
| 2018 | 6 | 10 |
| 2019 | 7 | 9 |
| 2020 | 11 | 8 |
| 2021 | 5 | 4 |
| 2022 | 5 | 6 |
| 2023 | 3 | 9 |
| 2024 | 6 | 2 |
| 2025 | 3 | 6 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Portable thermal printing device1 Sep 2026US 12,722,400 B2
- Thermal print head and method for manufacturing thermal print head18 Aug 2026US 12,709,104 B2Rohm Co., Ltd.
- Thermal print head12 May 2026US 12,623,467 B2Rohm Co., Ltd.
- Thermal print head10 Mar 2026US 12,570,092 B2Rohm Co., Ltd.
- Heater, heat sealing device, thermal transfer printer, and container processing apparatus23 Sep 2025US 12,420,562 B2Pacraft Co., Ltd.
- Thermal print head and method of manufacturing the same3 Sep 2026US 2026/0257492 A1Rohm Co., Ltd.
- Thermal print head, thermal print system, and method of manufacturing thermal print head23 Jul 2026US 2026/0208497 A1Rohm Co., Ltd.
- Thermal print head14 May 2026US 2026/0131576 A1Rohm Co., Ltd.
- Thermal head and thermal printer12 Feb 2026US 2026/0042298 A1KYOCERA Corporation
- Portable thermal printing device5 Feb 2026US 2026/0034801 A1
Most cited
By later US patents
- Highly wear-resistant thermal print heads with silicon-doped diamond-like carbon protective coatings106US 6,046,758 ADiamonex, Incorporated · 2000
- Thin film thermal print head36US 3,973,106 AHewlett-Packard Company · 1976
- Thermal head34US 6,256,053 B1Fuji Photo Film Co., Ltd. · 2001
- Thermal recording head33US 5,444,475 AHitachi Koki Co., Ltd. · 1995
- Thermal head33US 6,002,418 AFuji Photo Film Co., Ltd. · 1999