F16L 55/42
Gelled or degradable
Official title: gelled or degradable
F16L55/42 (Gelled or degradable) appears on 27 US grants and 33 published applications in this corpus.
Search patents in F16L- Granted patents
- 27
- Published applications
- 33
- Assignees
- 18
- Inventors
- 48
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 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 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 4 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 3 | 6 |
| 2020 | 1 | 4 |
| 2021 | 6 | 3 |
| 2022 | 2 | 5 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Degradable plug device for a pipe3 Feb 2026US 12,540,526 B2Robertson Intellectual Properties, LLC
- Methods and systems for sealing a service pipe30 Dec 2025US 12,510,203 B2
- Methods for inhibiting material mixing in a material processing system15 Jul 2025US 12,357,009 B2Tropicana Products, Inc.
- Degradable plug device for a pipe23 May 2023US 11,655,686 B2Robertson Intellectual Properties, LLC
- Wear indicator for use with pipeline pig components having a pipe wall contacting surface19 Jul 2022US 11,391,409 B2TDW Delaware, Inc.
- Method of cleaning pipeline interior with self-destructive cleaning device20 Mar 2025US 2025/0092981 A1
- Methods for inhibiting material mixing in a material processing system9 May 2024US 2024/0148035 A1Tropicana Products, Inc.
- Launcher system, apparatus and method for launching gel pig trains18 Apr 2024US 2024/0125420 A1Curapipe System Ltd.
- Degradable Plug Device For A Pipe28 Sep 2023US 2023/0304373 A1Robertson Intellectual Properties, LLC
- Flowable slush of frozen particles for ice pigging4 Aug 2022US 2022/0241826 A1BAE SYSTEMS plc
Most cited
By later US patents
- Test plug22US 6,267,001 B1E-Ticket Enterprises, LLC · 2001
- Pipeline cleaning process20US 5,346,339 AHalliburton Company · 1994
- Pipeline gel plug19US 4,383,783 AShell Oil Company · 1983
- Pipeline gel plug14US 4,379,722 AShell Oil Company · 1983
- Method for treating tubulars with a gelatin pig14US 5,215,781 AAtlantic Richfield Company · 1993