B28B 21/563
Gaskets
Official title: {Gaskets}
B28B21/563 (Gaskets) appears on 19 US grants and 7 published applications in this corpus.
Search patents in B28B- Granted patents
- 19
- Published applications
- 7
- Assignees
- 9
- Inventors
- 25
- Latest grant
- 17 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pre-stressed concrete pipe17 Jan 2023US 11,555,562 B1
- Removable and replaceable anchored tunnel gasket23 Mar 2021US 10,954,668 B2Vertex, Inc.
- Removable and replaceable anchored frame-like tunnel gasket construction with soft corners26 May 2020US 10,662,643 B2Vertex, Inc.
- Protective element, concrete element, and method for producing a concrete element6 Mar 2018US 9,909,418 B2Herrenknecht AG
- Protective element, concrete element, and method for producing a concrete element12 Jul 2016US 9,388,691 B2Herrenknecht AG
- Removable and replaceable anchored frame-like tunnel gasket construction25 Jul 2019US 2019/0226202 A1Vertex, Inc.
- Removable and replaceable anchored tunnel gasket25 Jul 2019US 2019/0226340 A1Vertex, Inc.
- Protective element, concrete element, and method for producing a concrete element6 Oct 2016US 2016/0290135 A1Herrenknecht AG
- Protective element, concrete element, and method for producing a concrete element29 Nov 2012US 2012/0301224 A1Herrenknecht AG
- Cast-in-place gasket for pipe joints17 Apr 2008US 2008/0088096 A1Vertex, Inc.
Most cited
By later US patents
- Method of making a molded-joint assembly47US 4,410,479 ABattenfeld Maschinenfabriken GmbH · 1983
- Combination mould portion and protective element for pipe31US 4,522,669 AForsheda AB · 1985
- Means for sealing the gap between two axially displaceable sealing surfaces25US 4,690,414 AMehren Rubber A/S · 1987
- Concrete manhole22US 4,592,674 A1986
- Sealing device for pipes11US 6,089,618 AForsheda AB · 2000