B21H 7/187
Rolling helical or rectilinear grooves
Official title: {Rolling helical or rectilinear grooves}
B21H7/187 (Rolling helical or rectilinear grooves) appears on 76 US grants and 46 published applications in this corpus.
Search patents in B21H- Granted patents
- 76
- Published applications
- 46
- Assignees
- 62
- Inventors
- 151
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 2 |
| 2004 | 0 | 5 |
| 2005 | 2 | 2 |
| 2006 | 4 | 3 |
| 2007 | 2 | 5 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 3 |
| 2020 | 2 | 1 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 3 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method for profiling workpieces by cold forming31 Dec 2024US 12,179,254 B2Ernst Grob AG
- Processing method of NPR steel rebar coil20 Jun 2023US 11,679,429 B2Jing-Jin Electric Technologies Co., Ltd.
- Rolling device for rolling work pieces having a toothing, and associated method2 May 2023US 11,638,981 B2Ecoroll AG Werkzeugtechnik
- Manufacturing process, tool stand, and drill bit14 Feb 2023US 11,577,429 B2Hilti Aktiengesellschaft
- Method and tool for roughening a cylinder bore wall to be coated, and component for guiding a cylinder piston17 May 2022US 11,331,763 B2MAG IAS GmbH
- Cold forming machine23 Oct 2025US 2025/0326024 A1Osg Ex-Cell-O GmbH
- Processing method of npr steel rebar coil6 Oct 2022US 2022/0314291 A1
- System and method of forming a metallic closure for a threaded container17 Mar 2022US 2022/0080490 A1Ball Corporation
- Apparatus and method for profiling workpieces by cold forming23 Dec 2021US 2021/0394250 A1Ernst Grob AG
- Manufacturing Process, Tool Stand, and Drill Bit27 May 2021US 2021/0154728 A1Hilti Aktiengesellschaft
Most cited
By later US patents
- Reinforcement for vehicle hollow structural member, having decreasing-thickness end portions50US 6,082,811 AKyoho Machine Works, Ltd. · 2000
- Y and T-finned tubes and methods and apparatus for their making41US 4,168,618 AWieland-Werke AG · 1979
- Y and T-finned tubes and methods and apparatus for their making30US 4,179,911 AWieland-Werke AG · 1979
- Linear motion ball bearing assembly and ball conforming shaft23US 4,025,995 AThomson Industries, Inc. · 1977
- Nail-type fastener, and process for manufacturing such fasteners22US 4,637,768 A1987