B41F 33/00
Indicating, counting, warning, control or safety devices
Official title: Indicating, counting, warning, control or safety devices (arrangements of counting devices in platen presses B41F1/00 {, B41F1/58; arrangements of counting devices} in cylinder presses B41F3/84; ink supply or metering devices B41F31/02)
B41F33/00 (Indicating, counting, warning, control or safety devices) appears on 1,977 US grants and 1,647 published applications in this corpus.
Search patents in B41F- Granted patents
- 1,977
- Published applications
- 1,647
- Assignees
- 667
- Inventors
- 3,372
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 13 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 19 | 0 |
| 1981 | 12 | 0 |
| 1982 | 12 | 0 |
| 1983 | 15 | 0 |
| 1984 | 22 | 0 |
| 1985 | 29 | 0 |
| 1986 | 24 | 0 |
| 1987 | 44 | 0 |
| 1988 | 21 | 0 |
| 1989 | 36 | 0 |
| 1990 | 33 | 0 |
| 1991 | 38 | 0 |
| 1992 | 37 | 0 |
| 1993 | 36 | 0 |
| 1994 | 29 | 0 |
| 1995 | 23 | 0 |
| 1996 | 35 | 0 |
| 1997 | 39 | 0 |
| 1998 | 57 | 0 |
| 1999 | 57 | 0 |
| 2000 | 42 | 0 |
| 2001 | 37 | 36 |
| 2002 | 39 | 63 |
| 2003 | 64 | 64 |
| 2004 | 67 | 56 |
| 2005 | 33 | 47 |
| 2006 | 34 | 67 |
| 2007 | 29 | 100 |
| 2008 | 35 | 80 |
| 2009 | 39 | 74 |
| 2010 | 35 | 68 |
| 2011 | 43 | 67 |
| 2012 | 47 | 66 |
| 2013 | 48 | 68 |
| 2014 | 70 | 66 |
| 2015 | 77 | 71 |
| 2016 | 69 | 58 |
| 2017 | 40 | 47 |
| 2018 | 51 | 51 |
| 2019 | 44 | 65 |
| 2020 | 49 | 53 |
| 2021 | 46 | 55 |
| 2022 | 63 | 77 |
| 2023 | 65 | 63 |
| 2024 | 57 | 75 |
| 2025 | 49 | 64 |
| 2026 | 38 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41F 33/0036Devices for scanning or checking the printed matter for quality control684
- B41F 33/0081Devices for scanning register marks291
- B41F 33/0009Central control units214
- B41F 33/04Tripping devices or stop-motions191
- B41F 33/16Programming systems for automatic control of sequence of operations172
- B41F 33/02Arrangements of indicating devices151
- B41F 33/0027Devices for scanning originals, printing formes or the like for determining or111
- B41F 33/0054Devices for controlling dampening110
All 13 subgroupsShow fewer
- B41F 33/0018Protection means against injury to the operator72
- B41F 33/0072Devices for measuring the pressure between cylinders or bearer rings53
- B41F 33/18Web break detection51
- B41F 33/0063Devices for measuring the thickness of liquid films on rollers or cylinders47
- B41F 33/009Devices for controlling numbering32
Recent patents
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- Image processing apparatus, image processing method, and storage medium for inspecting a printed material and to display a result of the inspection25 Aug 2026US 12,718,354 B2Canon Kabushiki Kaisha
- Conveyance device and conveyance method18 Aug 2026US 12,709,092 B2Fuji Corporation
- Substrate with Varying Saturations of Offset Printing Utilizing Image Movement8 Oct 2026US 2026/0307420 A1The Government of the United States of America, as represented by the Secretary of Homeland Security
- Fabric printing on nested patterns, and associated print systems and products thereof1 Oct 2026US 2026/0296056 A1Fiery, LLC
- Alignment tool usable for marking machine components24 Sep 2026US 2026/0285029 A1Caterpillar Inc.
- Method for correcting a registration during processing of a web of printing substrate17 Sep 2026US 2026/0273917 A1Heidelberger Druckmaschinen AG
- Can decorator and plate cylinder locking mechanism, replacement system, and timing adjustment system and method therefor17 Sep 2026US 2026/0273920 A1Stolle Machinery Company, LLC
Most cited
By later US patents
- Process for assessing the quality of a printed product212US 4,311,914 AGretag Aktiengesellschaft · 1982
- Method and apparatus for improving registration and skew end of line checking in production152US 9,248,640 B2Intermec IP Corp. · 2016
- Process and apparatus for the colorimetric analysis of printed material124US 4,505,589 AGretag Aktiengesellschaft · 1985
- Process and apparatus for controlling the inking process in a printing machine119US 5,182,721 AGretak Aktiengesellschaft · 1993
- Device for controlling the printing of one or more webs of material in a rotary printing press114US 6,167,806 AHeidelberger Druckmaschinen AG · 2001