A61C 5/42
Files for root canals
Official title: Files for root canals; Handgrips or guiding means therefor
A61C5/42 (Files for root canals) appears on 415 US grants and 450 published applications in this corpus.
Search patents in A61C- Granted patents
- 415
- Published applications
- 450
- Assignees
- 133
- Inventors
- 527
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 4 |
| 2002 | 12 | 9 |
| 2003 | 11 | 13 |
| 2004 | 7 | 24 |
| 2005 | 8 | 17 |
| 2006 | 9 | 27 |
| 2007 | 13 | 25 |
| 2008 | 6 | 17 |
| 2009 | 1 | 8 |
| 2010 | 15 | 13 |
| 2011 | 7 | 15 |
| 2012 | 5 | 17 |
| 2013 | 11 | 16 |
| 2014 | 13 | 14 |
| 2015 | 9 | 30 |
| 2016 | 8 | 17 |
| 2017 | 18 | 22 |
| 2018 | 23 | 30 |
| 2019 | 16 | 12 |
| 2020 | 13 | 17 |
| 2021 | 14 | 27 |
| 2022 | 11 | 21 |
| 2023 | 16 | 21 |
| 2024 | 15 | 14 |
| 2025 | 16 | 11 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dental handpiece and head thereof, and root canal preparation machine1 Sep 2026US 12,721,698 B2Guilin Woodpecker Medical Instrument Co., Ltd.
- Dental treatment apparatus and method for controlling dental treatment apparatus25 Aug 2026US 12,714,537 B2J. Morita Mfg. Corp.
- Access guide and drill kit to be used with same for endodontic access cavity preparation and method of use25 Aug 2026US 12,714,538 B2
- Therapeutic tooth bud ablation28 Jul 2026US 12,690,944 B2TriAgenics, Inc.
- Therapeutic tooth bud ablation24 Mar 2026US 12,582,501 B2TriAgenics, Inc.
- Dental root canal treatment instrument30 Jul 2026US 2026/0215881 A1Jun Dental.Co
- Endodontic instrument having improved fit of the tooth canal geometry23 Jul 2026US 2026/0207297 A1FKG Dentaire Sàrl
- Apparatuses and methods for displaying the position of a dental file during endodontic treatment14 May 2026US 2026/0130747 A1DENTSPLY SIRONA Inc.
- Determination method and determination apparatus for under-navigation apical surgery path23 Apr 2026US 2026/0108309 A1Wuhan University
- Rotary instrument for dental implantology or endodontics, comprising a flexible part12 Mar 2026US 2026/0069285 A1Reed Dental Technologies SàRl
Most cited
By later US patents
- Motor controller for a dental handpiece1,072US 5,980,248 AKabushiki Kaisha Morita Seisakusho · 1999
- Niobium-titanium-zirconium-molybdenum (nbtizrmo) alloys for dental and other medical device applications173US 6,238,491 B1DaviTech, Inc. · 2001
- Dental ultrasonic endodontic unit144US 4,818,229 AEngler Engineering Corporation · 1989
- Dental file/reamer instrument99US 4,934,934 AQuality Dental Products, Inc. · 1990
- Endodontic instrument99US 5,464,362 ATulsa Dental Products, L.L.C. · 1995