A61C 1/057
With means for preventing suction effect in turbine after deactivation of the
Official title: {with means for preventing suction effect in turbine after deactivation of the drive air}
A61C1/057 (With means for preventing suction effect in turbine after deactivation of the) appears on 46 US grants and 25 published applications in this corpus.
Search patents in A61C- Granted patents
- 46
- Published applications
- 25
- Assignees
- 27
- Inventors
- 67
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of preventing suckback of dental handpiece by bypass injection of driving air and dental handpiece system having bypass injection structure21 Oct 2025US 12,446,998 B2Dunamis Dental Co.,Ltd.
- Dental turbine31 Dec 2024US 12,178,670 B2DENTSPLY SIRONA Inc.
- Dental handpiece10 Dec 2024US 12,161,516 B2Beyes Dental Canada Inc.
- Zero-suckback device for disposable high-speed turbine dental drill handpiece14 Apr 2020US 10,617,487 B2Beijing Dongbo Dental Handpiece Co., Ltd.
- Dental drill head4 Sep 2018US 10,064,698 B2Zhengzhou Zezheng Technical Services Ltd.
- Turbine rotor, cartridge and medical cutting instrument9 Jul 2026US 2026/0191619 A1Nakanishi Inc.
- Dental handpiece11 Dec 2025US 2025/0375261 A1J. Morita Mfg. Corp.
- Dental handpiece27 Feb 2025US 2025/0064552 A1Beyes Dental Canada Inc.
- Device for preventing suck-back phenomenon in air-driven dental handpiece29 Jun 2023US 2023/0200960 A1
- Method of preventing suckback of dental handpiece by bypass injection of driving air and dental handpiece system having bypass injection structure8 Jun 2023US 2023/0172699 A1Dunamis Dental Co.,Ltd.
Most cited
By later US patents
- Method and apparatus for protecting against cross contamination of patients caused by oral reflux in dental instrument water and air lines136US 5,709,545 ASciTech Dental, Inc. · 1998
- Dental turbine35US 6,152,736 A2000
- High speed dental drill with positive pressure air drive26US 5,334,013 A1994
- Medical, in particular dental turbine handpiece26US 5,782,634 AKaltenbach & Voigt GmbH & Co. · 1998
- Apparatus for dental treatment provided with check valve in fluid passage25US 4,797,098 ANakanishi Dental Mfg. Co., Ltd. · 1989