B24B 19/022
For helicoidal grooves
Official title: {for helicoidal grooves (B24B19/04 takes precedence)}
B24B19/022 (For helicoidal grooves) appears on 63 US grants and 45 published applications in this corpus.
Search patents in B24B- Granted patents
- 63
- Published applications
- 45
- Assignees
- 43
- Inventors
- 105
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 3 | 5 |
| 2014 | 3 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 5 |
| 2019 | 5 | 2 |
| 2020 | 4 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 4 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Roller taper grinding method for planetary roller screw mechanism28 Jul 2026US 12,691,546 B2Chongqing University
- Method for manufacturing of a rotor15 Jul 2025US 12,358,064 B2Atlas Copco Airpower N.V.
- Centerless grinding through the application of a helical twist to axial grooves3 Dec 2024US 12,157,199 B2BorgWarner Inc.
- Drilling tool3 Sep 2024US 12,076,796 B2Ceratizit Balzheim GmbH & Co. KG
- Nanoparticles production27 Feb 2024US 11,911,866 B2
- Endodontic files with hybrid metallurgical elastic characteristics and identification colors20 Mar 2025US 2025/0090271 A1Pac-Dent, Inc.
- Corrugating roller manufacturing method, corrugating roller manufacturing apparatus, and corrugating roller28 Nov 2024US 2024/0391006 A1
- Method for grinding tooth flank of gear workpiece, and gear grinding machine26 Sep 2024US 2024/0316665 A1Nagase Integrex Co., Ltd.
- Roller taper grinding method for planetary roller screw mechanism25 Apr 2024US 2024/0131650 A1Chongqing University
- Endodontic files with hybrid metallurgical elastic characteristics and identification colors12 Oct 2023US 2023/0320815 A1Pac-Dent, Inc.
Most cited
By later US patents
- Endodontic instrument99US 5,464,362 ATulsa Dental Products, L.L.C. · 1995
- Endodontic instrument54US 5,628,674 ATulsa Dental Products, L.L.C. · 1997
- Endodontic instrument53US 5,762,541 ADENTSPLY International Inc. · 1998
- Method of manufacturing superelastic endodontic files and files made therefrom52US 6,315,558 B1Ormco Corporation · 2001
- Endodontic instrument, instrument blank and method of manufacture51US 6,299,445 B1Ormco Corporation · 2001