A61C 19/042
For determining the position of a root apex
Official title: {for determining the position of a root apex}
A61C19/042 (For determining the position of a root apex) appears on 67 US grants and 68 published applications in this corpus.
Search patents in A61C- Granted patents
- 67
- Published applications
- 68
- Assignees
- 42
- Inventors
- 135
- Latest grant
- 26 May 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 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 3 | 2 |
| 2006 | 1 | 4 |
| 2007 | 0 | 3 |
| 2008 | 0 | 3 |
| 2009 | 2 | 6 |
| 2010 | 2 | 4 |
| 2011 | 2 | 2 |
| 2012 | 2 | 1 |
| 2013 | 4 | 2 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 4 |
| 2018 | 1 | 3 |
| 2019 | 2 | 4 |
| 2020 | 3 | 3 |
| 2021 | 4 | 3 |
| 2022 | 1 | 5 |
| 2023 | 0 | 2 |
| 2024 | 6 | 3 |
| 2025 | 4 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for indicating the concentration level of an irrigation solution in the apical zone of a dental root canal26 May 2026US 12,638,410 B2
- 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.
- Apex locator attachment14 Oct 2025US 12,440,307 B2DENTSPLY SIRONA Inc.
- Endodontic file clip for an apex locator19 Aug 2025US 12,390,316 B2DENTSPLY SIRONA Inc.
- Endodontic File System with Automatic Distance Measurement Circuit3 Jul 2025US 2025/0213326 A1
- Dental treatment system for locating the apex of a tooth5 Jun 2025US 2025/0177105 A1DENTSPLY SIRONA Inc.
- Method for collecting usage data of an endodontic instrument16 Jan 2025US 2025/0017690 A1Micro-Mega International
- Apparatus for measuring the length of root canal and a method of use thereof5 Dec 2024US 2024/0398529 A1
- Handpiece having root canal length measurement function8 Aug 2024US 2024/0261077 A1Meta Systems
Most cited
By later US patents
- Method and apparatus for apical detection with complex impedance measurement338US 5,759,159 AOrmco Corporation · 1998
- Root canal implant, proximity indicative, and method of implantation59US 4,525,147 A1985
- Dental detection apparatus for position of root apex48US 5,112,224 AShirota Denki Rozai Kabushiki Kaisha · 1992
- Method and improved device for measuring and locating a tooth apex47US 6,221,031 B12001
- Dental hand engine42US 4,243,388 AKabushiki-Kaisha Dentronics · 1981