A61C 19/041
For measuring the length of the root canal of a tooth
Official title: {for measuring the length of the root canal of a tooth}
A61C19/041 (For measuring the length of the root canal of a tooth) appears on 81 US grants and 90 published applications in this corpus.
Search patents in A61C- Granted patents
- 81
- Published applications
- 90
- Assignees
- 45
- Inventors
- 172
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 4 |
| 2003 | 2 | 0 |
| 2004 | 0 | 4 |
| 2005 | 3 | 3 |
| 2006 | 2 | 7 |
| 2007 | 1 | 4 |
| 2008 | 3 | 6 |
| 2009 | 4 | 8 |
| 2010 | 2 | 3 |
| 2011 | 3 | 3 |
| 2012 | 1 | 2 |
| 2013 | 3 | 3 |
| 2014 | 2 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 6 |
| 2018 | 2 | 2 |
| 2019 | 2 | 4 |
| 2020 | 4 | 4 |
| 2021 | 4 | 4 |
| 2022 | 0 | 8 |
| 2023 | 3 | 1 |
| 2024 | 6 | 4 |
| 2025 | 5 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dental apparatus, dental assembly including the dental apparatus and method of using the dental assembly29 Sep 2026US 12,746,106 B1King Saud University
- Dental treatment apparatus13 Jan 2026US 12,521,219 B2J. Morita Mfg. Corp.
- Dental treatment apparatus and method of driving the same14 Oct 2025US 12,440,306 B2J. Morita Mfg. Corp.
- Dental apparatus, dental assembly including the dental apparatus and method of using the dental assembly2 Sep 2025US 12,402,995 B1King Saud University
- Endodontic file clip for an apex locator19 Aug 2025US 12,390,316 B2DENTSPLY SIRONA Inc.
- Dental apparatus, dental assembly including the dental apparatus and method of using the dental assembly1 Oct 2026US 2026/0294606 A1King Saud University
- Apparatuses and methods for displaying the position of a dental file during endodontic treatment14 May 2026US 2026/0130747 A1DENTSPLY SIRONA Inc.
- Dental handpiece5 Mar 2026US 2026/0060780 A1DENTSPLY SIRONA Inc.
- Endodontic File System with Automatic Distance Measurement Circuit3 Jul 2025US 2025/0213326 A1
- Method for warning of an instrument break risk30 Jan 2025US 2025/0032214 A1Micro-Mega International
Most cited
By later US patents
- Method and apparatus for apical detection with complex impedance measurement338US 5,759,159 AOrmco Corporation · 1998
- Flexible syringe needle244US 6,162,202 A2000
- Method and improved device for measuring and locating a tooth apex47US 6,221,031 B12001
- Handpiece having a root canal length measurement function45US 5,897,315 AKabushiki Kaisha Morita Seisakusho · 1999
- Dental hand engine42US 4,243,388 AKabushiki-Kaisha Dentronics · 1981