B41
Printing
Official title: Printing; lining machines; typewriters; stamps
B41 (Printing) appears on 114,083 US grants and 93,052 published applications in this corpus.
Search patents in B41- Granted patents
- 114,083
- Published applications
- 93,052
- Assignees
- 11,314
- Inventors
- 92,855
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 877 | 0 |
| 1977 | 874 | 0 |
| 1978 | 785 | 0 |
| 1979 | 568 | 0 |
| 1980 | 790 | 0 |
| 1981 | 834 | 0 |
| 1982 | 791 | 0 |
| 1983 | 968 | 0 |
| 1984 | 939 | 0 |
| 1985 | 1164 | 0 |
| 1986 | 1187 | 0 |
| 1987 | 1198 | 0 |
| 1988 | 1246 | 0 |
| 1989 | 1445 | 0 |
| 1990 | 1419 | 0 |
| 1991 | 1499 | 0 |
| 1992 | 1647 | 0 |
| 1993 | 1586 | 0 |
| 1994 | 1536 | 0 |
| 1995 | 1666 | 0 |
| 1996 | 1740 | 0 |
| 1997 | 1825 | 0 |
| 1998 | 2593 | 0 |
| 1999 | 2513 | 0 |
| 2000 | 2894 | 0 |
| 2001 | 3199 | 1096 |
| 2002 | 3410 | 3318 |
| 2003 | 3273 | 3593 |
| 2004 | 3146 | 4199 |
| 2005 | 2565 | 4980 |
| 2006 | 2820 | 4486 |
| 2007 | 2640 | 4441 |
| 2008 | 2730 | 4501 |
| 2009 | 2606 | 4499 |
| 2010 | 3425 | 3906 |
| 2011 | 3588 | 3918 |
| 2012 | 3466 | 3488 |
| 2013 | 3634 | 3702 |
| 2014 | 4203 | 3538 |
| 2015 | 4063 | 3556 |
| 2016 | 3518 | 3366 |
| 2017 | 3020 | 3657 |
| 2018 | 2923 | 3830 |
| 2019 | 3334 | 3714 |
| 2020 | 3285 | 3711 |
| 2021 | 2872 | 3546 |
| 2022 | 2678 | 3363 |
| 2023 | 2576 | 3044 |
| 2024 | 2547 | 2875 |
| 2025 | 2350 | 2648 |
| 2026 | 1628 | 2077 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- B41JTypewriters80,245
- B41MPrinting, duplicating, marking, or copying processes21,223
- B41FPrinting machines or presses13,255
- B41CProcesses for the manufacture or reproduction of printing surfaces3,427
- B41PIndexing scheme relating to printing, lining machines, typewriters, and to stamps2,840
- B41NPrinting plates or foils2,777
- B41KStamps1,149
- B41LApparatus or devices for manifolding, duplicating or printing for office or other991
Recent patents
- Foil stamping die for manufacturing vehicle interior component6 Oct 2026US 12,752,330 B2Moriroku Kabushiki Kaisha
- Printing device, preferably a 3D printer6 Oct 2026US 12,752,482 B2Liqtra GmbH
- Drive circuit board and liquid ejection apparatus6 Oct 2026US 12,752,527 B2Seiko Epson Corporation
- Liquid ejection apparatus, recording medium, and liquid ejection head6 Oct 2026US 12,752,528 B2Konica Minolta, Inc.
- Ink jet recording method and ink jet recording apparatus6 Oct 2026US 12,752,529 B2Canon Kabushiki Kaisha
- Printed documents readily identifying indicia printing defects8 Oct 2026US 2026/0306937 A1Brightstar Global Solutions Corporation
- Ink formulations for printing and manufacture of reactive chemical sensors8 Oct 2026US 2026/0307076 A1Veriteque USA Inc.
- Drive waveform generator, liquid discharge head, liquid discharge apparatus, manufacturing apparatus for display devices, and method of manufacturing display devices8 Oct 2026US 2026/0307382 A1
- Liquid discharge head substrate, liquid discharge head, and liquid discharge apparatus8 Oct 2026US 2026/0307383 A1Canon Kabushiki Kaisha
- Printing device and method for controlling the same8 Oct 2026US 2026/0307384 A1Samsung Display Co., Ltd.
Most cited
By later US patents
- Bubble jet recording method and apparatus in which a heating element generates bubbles in a liquid flow path to project droplets2,047US 4,723,129 ACanon Kabushiki Kaisha · 1988
- Droplet generating method and apparatus thereof1,847US 4,463,359 ACanon Kabushiki Kaisha · 1984
- Bubble jet recording method and apparatus in which a heating element generates bubbles in multiple liquid flow paths to project droplets1,733US 4,740,796 ACanon Kabushiki Kaisha · 1988
- Liquid jet recording head1,616US 4,558,333 ACanon Kabushiki Kaisha · 1985
- Ink jet recording method1,590US 4,345,262 ACanon Kabushiki Kaisha · 1982