B23H 9/04
Treating surfaces of rolls
B23H9/04 (Treating surfaces of rolls) appears on 35 US grants and 9 published applications in this corpus.
Search patents in B23H- Granted patents
- 35
- Published applications
- 9
- Assignees
- 23
- Inventors
- 61
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for improving roll roundness27 May 2025US 12,311,423 B2
- Current feeding device for wire electrical discharge machining13 Apr 2021US 10,974,332 B2Agie Charmilles SA
- Method of making a nanostructured cylindrical roll17 Nov 2020US 10,838,297 B23M Innovative Properties Company
- Electrical discharge machine18 Feb 2020US 10,562,120 B2Sarclad Limited
- Method of producing anti-glare film23 Sep 2008US 7,427,371 B2FUJIFILM Corporation
- Improvements to electrical discharge texturing machines13 Mar 2025US 2025/0083242 A1Sarclad Limited
- System and method for improving roll roundness27 Apr 2023US 2023/0131792 A1
- Current Feeding Device For Wire Electrical Discharge Machining5 Dec 2019US 2019/0366457 A1Agie Charmilles SA
- Method of making a nanostructured cylindrical roll18 Jul 2019US 2019/0219919 A13M Innovative Properties Company
- Electrical discharge machine26 Oct 2017US 2017/0304921 A1Sarclad Limited
Most cited
By later US patents
- Electrical discharge apparatus for producing a textured finish on a conductive surface23US 5,034,589 ASarclad International Limited · 1991
- Roll roundness measuring and machining apparatus and method20US 5,117,081 AArmco Inc. · 1992
- Method and apparatus for the manufacture of rotary sheet dies19US 4,860,616 A1989
- Electrical discharge methods and apparatus therefor16US 4,870,243 ASarclad International Limited · 1989
- Process for electrical discharge machining of cylindrical work12US 4,233,485 AMitsubishi Denki Kabushiki Kaisha · 1980