B29L 2031/7494
Pistons
Official title: {Pistons}
B29L2031/7494 (Pistons) appears on 25 US grants and 17 published applications in this corpus.
Search patents in B29L- Granted patents
- 25
- Published applications
- 17
- Assignees
- 21
- Inventors
- 49
- Latest grant
- 27 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Piston, cartridge and method of venting a cartridge27 Aug 2024US 12,070,768 B2Medmix Switzerland AG
- Two-component piston for a cartridge, and a cartridge2 Jan 2024US 11,857,995 B2Medmix Switzerland AG
- Piston including a composite layer applied to metal substrate26 Dec 2023US 11,850,773 B2Tenneco Inc.
- Piston including a composite layer applied to a metal substrate29 Nov 2022US 11,511,515 B2Tenneco Inc.
- Method of making a two-component piston15 Nov 2022US 11,498,094 B2Medmix Switzerland AG
- Master piston for a hydraulic vehicle brake18 Apr 2024US 2024/0123958 A1Trelleborg Sealing Solutions Germany GmbH
- Piston including a composite layer applied to metal substrate23 Mar 2023US 2023/0088665 A1Tenneco Inc.
- Method of making a two-component piston, injection mold for a two-component piston, two-component piston and cartridge15 Sep 2022US 2022/0288628 A1Medmix Switzerland AG
- Piston, cartridge and method of venting a cartridge23 Dec 2021US 2021/0394227 A1Sulzer Mixpac AG
- Carbon component with controlled vibration30 Sep 2021US 2021/0299981 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Rotary actuator and method for forming a rotary piston26US 5,044,257 AKeystone International Holdings Corp. · 1991
- Method of making a piston25US 4,450,610 AAudi NSU Auto Union Aktiengesellschaft · 1984
- Short fiber preform, method of making it, and composite material manufactured from it23US 4,852,630 AToyota Jidosha Kabushiki Kaisha · 1989
- Piston assembly and method for manufacturing15US 4,067,093 ADynamic Seals Incorporated · 1978
- Two-part plastic piston with excess resin receiving groove15US 4,998,461 ANippon Air Brake Co., Ltd. · 1991