B23P 15/20
Railroad requirements
Official title: railroad requirements, e.g. buffers
B23P15/20 (Railroad requirements) appears on 20 US grants and 19 published applications in this corpus.
Search patents in B23P- Granted patents
- 20
- Published applications
- 19
- Assignees
- 11
- Inventors
- 26
- Latest grant
- 16 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 6 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 3 |
| 2020 | 1 | 0 |
| 2021 | 1 | 3 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems of applying materials to components16 Jul 2024US 12,040,306 B2Laird Technologies, Inc.
- Transportation system3 Oct 2023US 11,772,914 B2Hyperloop Technologies, Inc.
- Anchoring device for a railway rail fastening assembly12 Sep 2023US 11,753,774 B2Pandrol Limited
- Railcar axle box and method of producing the same5 Oct 2021US 11,136,051 B2Kawasaki Jukogyo Kabushiki Kaisha
- Systems of applying materials to components11 Aug 2020US 10,741,519 B2Laird Technologies, Inc.
- Transportation system7 Apr 2022US 2022/0106136 A1Hyperloop Technologies, Inc.
- Transportation system19 Aug 2021US 2021/0253379 A1Hyperloop Technologies, Inc.
- An anchoring device for a railway rail fastening assembly20 May 2021US 2021/0148057 A1Pandrol Limited
- Systems And Methods Of Applying Materials to Components28 Jan 2021US 2021/0028142 A1Laird Technologies, Inc.
- Transportation system3 Oct 2019US 2019/0300301 A1Hyperloop Technologies, Inc.
Most cited
By later US patents
- Hollow structural members, a rail system and methods of manufacturing55US 8,066,200 B2Hilltrac, Inc. · 2011
- Transportation system20US 9,718,630 B2Hyperloop Technologies, Inc. · 2017
- Insert for railroad tools12US 4,214,847 AFansteel Inc. · 1980
- Method for the production of a guide rail11US 4,635,331 ASKF Kugellagerfabriken GmbH · 1987
- Transportation system6US 9,511,959 B2Hyperloop Technologies, Inc. · 2016