B23H 9/14
Making holes
B23H9/14 (Making holes) appears on 316 US grants and 279 published applications in this corpus.
Search patents in B23H- Granted patents
- 316
- Published applications
- 279
- Assignees
- 172
- Inventors
- 740
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 12 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 11 | 1 |
| 2002 | 12 | 7 |
| 2003 | 8 | 6 |
| 2004 | 12 | 9 |
| 2005 | 9 | 11 |
| 2006 | 6 | 9 |
| 2007 | 7 | 5 |
| 2008 | 2 | 10 |
| 2009 | 4 | 6 |
| 2010 | 2 | 8 |
| 2011 | 5 | 8 |
| 2012 | 5 | 7 |
| 2013 | 3 | 9 |
| 2014 | 11 | 9 |
| 2015 | 7 | 20 |
| 2016 | 10 | 17 |
| 2017 | 12 | 18 |
| 2018 | 15 | 22 |
| 2019 | 18 | 19 |
| 2020 | 16 | 16 |
| 2021 | 10 | 8 |
| 2022 | 17 | 12 |
| 2023 | 9 | 15 |
| 2024 | 8 | 13 |
| 2025 | 7 | 7 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Diagnostic device for power supply device for electric discharge machine7 Apr 2026US 12,596,158 B2Makino Milling Machine Co., Ltd.
- Methods and systems of electrochemical machining8 Jul 2025US 12,350,750 B2General Electric Company
- Change device, fine hole electric discharge machine and electrode change method24 Jun 2025US 12,337,403 B2Sodick Co., Ltd.
- Hydraulically operated electrochemical machining assemblies27 May 2025US 12,311,459 B2Textron Innovations Inc.
- Electrical discharge machining assembly including electrode13 May 2025US 12,296,399 B2Robert Bosch GmbH
- Small-hole electrical discharge machine6 Aug 2026US 2026/0225168 A1Elenix, Inc.
- Electrochemical machining tool, electrochemical machining device, and blade manufacturing method30 Jul 2026US 2026/0216804 A1Mitsubishi Heavy Industries, Ltd.
- Ultrasonic measurement of electrode depth while electrical discharge machining2 Jul 2026US 2026/0183855 A1GE Infrastructure Technology LLC
- Measurement of electrode depth while electrical discharge machining11 Jun 2026US 2026/0158573 A1
- Snake robot for electrochemical machining14 May 2026US 2026/0131393 A1International Business Machines Corporation
Most cited
By later US patents
- Curved bore drilling apparatus266US 5,002,546 A1991
- Method and apparatus for forming diffused cooling holes in an airfoil96US 4,197,443 AGeneral Electric Company · 1980
- Combined EDM and ultrasonic drilling35US 4,992,639 AROLLS-ROYCE plc · 1991
- Method and apparatus for predicting a characteristic of a product attribute formed by a machining process using a model of the process35US 6,850,874 B1United Technologies Corporation · 2005
- Method for providing a curved cooling channel in a gas turbine component as well as coolable blade for a gas turbine component32US 6,644,920 B2Alstom (Switzerland) Ltd · 2003