B21D 39/044
Perpendicular
Official title: {perpendicular}
B21D39/044 (Perpendicular) appears on 66 US grants and 50 published applications in this corpus.
Search patents in B21D- Granted patents
- 66
- Published applications
- 50
- Assignees
- 36
- Inventors
- 94
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 0 | 1 |
| 2018 | 4 | 5 |
| 2019 | 2 | 6 |
| 2020 | 5 | 5 |
| 2021 | 4 | 3 |
| 2022 | 3 | 0 |
| 2023 | 1 | 2 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Tubular member flange attachment and methods of attaching a flange to a tubular member30 Dec 2025US 12,508,642 B2Bobrick Washroom Equipment, Inc.
- Tee type connector pipe manufacturing method5 Aug 2025US 12,377,456 B2
- Method for producing structure3 Dec 2024US 12,157,426 B2Kobe Steel, Ltd.
- Bead forming method and structural member8 Oct 2024US 12,109,605 B2Kobe Steel, Ltd.
- Element joint and manufacturing method therefor1 Oct 2024US 12,104,719 B2Kobe Steel, Ltd.
- Tubular member flange attachment and methods of attaching a flange to a tubular member18 Dec 2025US 2025/0381591 A1Bobrick Washroom Equipment, Inc.
- Method and device for making a t-branch for pipes25 Sep 2025US 2025/0297701 A1T-Drill Oy
- Tee type connector pipe manufacturing method10 Oct 2024US 2024/0335869 A1
- Guardrail assembled by stamping and apparatus for assembly of same26 Sep 2024US 2024/0318459 A1Linqu Yuan Hong Metal Products Co., Ltd
- Method and device for manufacturing a pipe t-branch19 Sep 2024US 2024/0309981 A1
Most cited
By later US patents
- Device for connecting a tube and a sheet metal element39US 4,597,687 A1986
- Fixtureless method of making tube joints37US 4,253,224 ABrazeway, Inc. · 1981
- Fluid distribution apparatus31US 5,207,461 A1993
- Coupling member28US 4,440,519 ACentrale des Equipements Mobiliers et Immobiliers (CEMI) · 1984
- Handrail assembly28US 5,370,368 A1994