B81B 2201/052
Ink-jet print cartridges
B81B2201/052 (Ink-jet print cartridges) appears on 101 US grants and 104 published applications in this corpus.
Search patents in B81B- Granted patents
- 101
- Published applications
- 104
- Assignees
- 37
- Inventors
- 212
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 4 | 7 |
| 2006 | 1 | 4 |
| 2007 | 6 | 9 |
| 2008 | 4 | 3 |
| 2009 | 3 | 9 |
| 2010 | 7 | 6 |
| 2011 | 9 | 4 |
| 2012 | 3 | 2 |
| 2013 | 0 | 5 |
| 2014 | 7 | 2 |
| 2015 | 0 | 4 |
| 2016 | 3 | 5 |
| 2017 | 5 | 6 |
| 2018 | 6 | 10 |
| 2019 | 10 | 5 |
| 2020 | 7 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 5 |
| 2023 | 3 | 4 |
| 2024 | 1 | 1 |
| 2025 | 4 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Corrosion tolerant micro-electromechanical fluid ejection device9 Dec 2025US 12,491,716 B2Hewlett-Packard Development Company, L. P.
- Printer jetting mechanism and printer employing the printer jetting mechanism21 Oct 2025US 12,447,534 B2Xerox Corporation
- Device and method of manufacturing the device1 Jul 2025US 12,343,979 B2Canon Kabushiki Kaisha
- MEMS device, liquid ejecting head, and liquid ejecting apparatus18 Mar 2025US 12,251,936 B2Seiko Epson Corporation
- MEMS chip assembly having multiple trenches13 Aug 2024US 12,059,898 B2Memjet Technology Limited
- Micro-transfer printing for mems29 Jan 2026US 2026/0027827 A1X-FAB Global Services GmbH
- Method for processing silicon substrate and method for processing liquid ejection head substrate30 Jan 2025US 2025/0033956 A1Canon Kabushiki Kaisha
- Mems device14 Mar 2024US 2024/0083741 A1Rohm Co., Ltd.
- Corrosion tolerant micro-electromechanical fluid ejection device28 Dec 2023US 2023/0415482 A1Hewlett-Packard Development Company, L. P.
- Mems device, liquid ejecting head, and liquid ejecting apparatus20 Jul 2023US 2023/0226818 A1Seiko Epson Corporation
Most cited
By later US patents
- Boron nutride membrane in wafer structure239US 5,270,125 ARedwood Microsystems, Inc. · 1993
- Method of forming a microstructure97US 5,804,083 ASharp Kabushiki Kaisha · 1998
- Method of producing a through-hole, silicon substrate having a through-hole, device using such a substrate, method of producing an ink-jet print head, and ink-jet print head82US 6,143,190 ACanon Kabushiki Kaisha · 2000
- Fabrication of silicon structures by single side, multiple step etching process66US 4,863,560 A1989
- Formation of a multi-nozzle ink jet53US 4,455,192 AFuji Xerox Co., Ltd. · 1984