B23B 2251/245
Variable cross sections
B23B2251/245 (Variable cross sections) appears on 16 US grants and 23 published applications in this corpus.
Search patents in B23B- Granted patents
- 16
- Published applications
- 23
- Assignees
- 15
- Inventors
- 50
- Latest grant
- 3 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 2 |
| 2015 | 0 | 4 |
| 2016 | 4 | 4 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Step drill3 Aug 2021US 11,077,504 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Drilling tool30 Jun 2020US 10,695,951 B2Robert Bosch GmbH
- Precessional-motion bone and dental drilling tools and bone harvesting apparatus30 Jul 2019US 10,363,615 B2
- Drilling tool and method for producing drill holes18 Sep 2018US 10,076,793 B2Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Drill1 Aug 2017US 9,718,136 B2Drebo Werkzeugfabrik GmbH
- Drill bit14 Aug 2025US 2025/0256338 A1Techtronic Cordless GP
- Rotary drilling tool as well as method for producing a through-hole28 Dec 2023US 2023/0415247 A1
- Step drill25 Jul 2019US 2019/0224759 A1Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Method to produce a radial run-out tool as well as a radial run-out tool27 Jun 2019US 2019/0193226 A1Kennametal Inc.
- Drilling Tool15 Nov 2018US 2018/0326618 A1Robert Bosch GmbH
Most cited
By later US patents
- Cutting tool for machining bores in materials having spring-back33US 5,967,712 AKennametal Inc. · 1999
- Drill bit and step feeding method29US 5,888,036 AHitachi Seiko Ltd. · 1999
- Precessional-motion bone and dental drilling tools and bone harvesting apparatus12US 9,271,740 B22016
- Precessional drilling and reaming9US 9,277,925 B22016
- Drilling tool8US 8,105,001 B2Kennametal Inc. · 2012