B41J 2/04571
Detecting viscosity
Official title: {detecting viscosity}
B41J2/04571 (Detecting viscosity) appears on 267 US grants and 298 published applications in this corpus.
Search patents in B41J- Granted patents
- 267
- Published applications
- 298
- Assignees
- 55
- Inventors
- 294
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 9 | 3 |
| 2003 | 7 | 10 |
| 2004 | 11 | 27 |
| 2005 | 22 | 36 |
| 2006 | 27 | 14 |
| 2007 | 15 | 19 |
| 2008 | 16 | 28 |
| 2009 | 19 | 14 |
| 2010 | 16 | 12 |
| 2011 | 20 | 8 |
| 2012 | 4 | 4 |
| 2013 | 2 | 4 |
| 2014 | 5 | 5 |
| 2015 | 5 | 4 |
| 2016 | 4 | 4 |
| 2017 | 5 | 2 |
| 2018 | 3 | 6 |
| 2019 | 4 | 6 |
| 2020 | 8 | 16 |
| 2021 | 9 | 9 |
| 2022 | 10 | 13 |
| 2023 | 4 | 16 |
| 2024 | 8 | 11 |
| 2025 | 15 | 9 |
| 2026 | 7 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inkjet recording device, and data transfer system and data transfer method including the inkjet recording device9 Jun 2026US 12,649,313 B2Keyence Corporation
- Liquid discharge system2 Jun 2026US 12,643,321 B2Seiko Epson Corporation
- Ink drop measurement pad, inkjet printer device including same, and ink drop measurement method26 May 2026US 12,636,881 B2Unijet Co., Ltd.
- Liquid ejection device and defective nozzle determination method7 Apr 2026US 12,594,757 B2Seiko Epson Corporation
- Method for driving liquid ejecting apparatus and liquid ejecting apparatus17 Mar 2026US 12,576,632 B2Seiko Epson Corporation
- Head Unit And Liquid Ejecting Apparatus1 Oct 2026US 2026/0296007 A1Seiko Epson Corporation
- Liquid ejection device6 Aug 2026US 2026/0225364 A1Seiko Epson Corporation
- Liquid discharge apparatus16 Jul 2026US 2026/0200237 A1Canon Kabushiki Kaisha
- Liquid ejecting apparatus2 Jul 2026US 2026/0184070 A1Seiko Epson Corporation
- Liquid ejecting apparatus25 Jun 2026US 2026/0175566 A1Seiko Epson Corporation
Most cited
By later US patents
- Printhead assembly for an ink jet printer236US 6,652,082 B2Silverbrook Research Pty Ltd · 2003
- Method of interconnecting a printhead with an ink supply manifold and a combined structure resulting therefrom145US 6,312,114 B1Silverbrook Research Pty Ltd · 2001
- Ink supply system for a portable printer92US 6,824,257 B2Silverbrook Research Pty Ltd · 2004
- Ink jet head, ink jet head cartridge and ink jet apparatus91US 5,731,828 ACanon Kabushiki Kaisha · 1998
- Method and apparatus for determining an optimum print density for an ink jet printer52US 6,109,723 AHewlett-Packard Company · 2000