E01B 9/688
With internal cavities
Official title: {with internal cavities}
E01B9/688 (With internal cavities) appears on 10 US grants and 5 published applications in this corpus.
Search patents in E01B- Granted patents
- 10
- Published applications
- 5
- Assignees
- 10
- Inventors
- 23
- Latest grant
- 15 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pad for a railway rail fastening assembly15 Feb 2022US 11,248,349 B2Pandrol Limited
- Rubber pad for rails21 May 2019US 10,294,615 B2Plastex SA
- Method of preparing and method of applying a vibration damping system19 Feb 2008US 7,332,118 B2Rockwool International A/S
- Mat consisting of tubes18 Nov 2003US 6,649,237 B1Phoenix Aktiengesellschaft
- Elastic band-shaped base, specially track-bed matting22 Oct 2002US 6,468,631 B1Phoenix Aktiengesellschaft
- Tie guide, replaceable pad, and method of using the same13 Aug 2026US 2026/0234875 A1Transportation IP Holdings, LLC
- A pad for a reailway rail fastening assembly4 Jul 2019US 2019/0203424 A1Pandrol Limited
- Rubber pad for rails20 Apr 2017US 2017/0107672 A1Plastex SA
- Vibration damping system24 Jun 2004US 2004/0121096 A1Rockwool International A/S
- Tube mat18 Mar 2004US 2004/0053004 A1Phoenix Aktiengesellschaft
Most cited
By later US patents
- Electrothermally deformable levelling pad42US 3,936,661 AMatsushita Electric Industrial Co., Ltd. · 1976
- Device for fastening a railway track on sleepers disposed end to end21US 4,216,904 A1980
- Spring rail plate fasteners for direct railroad track fixation17US 3,945,566 ANew York City Transit Authority · 1976
- Rail system10US 6,296,195 B1Phoenix Aktiengesellschaft · 2001
- Elastic band-shaped base, specially track-bed matting9US 6,468,631 B1Phoenix Aktiengesellschaft · 2002