D21F 7/06
Indicating or regulating the thickness of the layer
Official title: Indicating or regulating the thickness of the layer; Signal devices
D21F7/06 (Indicating or regulating the thickness of the layer) appears on 169 US grants and 104 published applications in this corpus.
Search patents in D21F- Granted patents
- 169
- Published applications
- 104
- Assignees
- 81
- Inventors
- 248
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 3 |
| 2003 | 0 | 4 |
| 2004 | 5 | 2 |
| 2005 | 3 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 4 | 5 |
| 2010 | 1 | 3 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 3 |
| 2014 | 5 | 7 |
| 2015 | 7 | 8 |
| 2016 | 9 | 14 |
| 2017 | 6 | 5 |
| 2018 | 8 | 5 |
| 2019 | 3 | 5 |
| 2020 | 2 | 5 |
| 2021 | 8 | 5 |
| 2022 | 3 | 1 |
| 2023 | 3 | 5 |
| 2024 | 4 | 10 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sheet manufacturing apparatus28 Jul 2026US 12,692,655 B2Seiko Epson Corporation
- Method to control gap for sheet manufacturing measurement processes14 Apr 2026US 12,601,590 B2Honeywell International Inc.
- Used paper recycling apparatus26 Aug 2025US 12,398,515 B2Seiko Epson Corporation
- Method for determining film thickness, method for producing a film and device for producing a film26 Aug 2025US 12,398,996 B2Stora Enso OYJ
- Systems and methods for monitoring and controlling industrial processes5 Aug 2025US 12,379,717 B2Industrial Video Solutions Inc.
- A method for manufacturing a sheet of a fibrous material9 Jul 2026US 2026/0193841 A1Inter IKEA Systems B.V.
- Systems and methods for monitoring and controlling industrial processes27 Nov 2025US 2025/0362667 A1Industrial Video Solutions Inc.
- Sheet manufacturing apparatus26 Dec 2024US 2024/0426053 A1Seiko Epson Corporation
- Method to Control Gap for Sheet Manufacturing Measurement Processes26 Dec 2024US 2024/0426604 A1Honeywell International Inc.
- Information providing apparatus, information providing method, and non-transitory computer readable recording medium12 Dec 2024US 2024/0410834 A1Yokogawa Electric Corporation
Most cited
By later US patents
- Rapid-scanning infrared sensor63US 4,879,471 AMeasurex Corporation · 1989
- Method and apparatus for roll profile measurement61US 5,048,353 ABeloit Corporation · 1991
- Roll for use in calenders and the like58US 4,729,153 AKleinewefers GmbH · 1988
- Cross-direction actuator and control system with adaptive footprint58US 7,513,975 B2Honeywell International Inc. · 2009
- Paper recycling system and paper recycling method54US 8,882,965 B2Seiko Epson Corporation · 2014