B08B 9/0553
Cylindrically shaped pigs
Official title: {Cylindrically shaped pigs}
B08B9/0553 (Cylindrically shaped pigs) appears on 138 US grants and 81 published applications in this corpus.
Search patents in B08B- Granted patents
- 138
- Published applications
- 81
- Assignees
- 77
- Inventors
- 232
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 3 |
| 2002 | 3 | 4 |
| 2003 | 7 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 3 |
| 2014 | 3 | 4 |
| 2015 | 3 | 3 |
| 2016 | 2 | 7 |
| 2017 | 7 | 4 |
| 2018 | 4 | 6 |
| 2019 | 2 | 3 |
| 2020 | 5 | 5 |
| 2021 | 4 | 4 |
| 2022 | 6 | 7 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 5 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Stabilization of flow by moveable choke19 Aug 2025US 12,392,444 B2ConocoPhillips Company
- Inspection or cleaning pig20 May 2025US 12,305,790 B2Rosen IP AG
- Method of treating or maintaining an apparatus15 Apr 2025US 12,275,891 B2Pig Sweep, LLC
- Pipeline pigging apparatus and methods of use4 Mar 2025US 12,240,020 B2
- Pipeline pig with retractable scraper14 Jan 2025US 12,194,514 B2Saudi Arabian Oil Company
- Pipe cleaning device using rotating brush25 Dec 2025US 2025/0387814 A1Research & Business Foundation Sungkyunkwan University
- Pipeline scale removal25 Dec 2025US 2025/0389367 A1Saudi Arabian Oil Company
- Method for Treating and Protecting Equipment Using Nanoparticle Compositions31 Jul 2025US 2025/0243399 A1Pig Sweep, LLC
- Pipeline pig with pressure-equalizing transmitter cavity system20 Feb 2025US 2025/0060064 A1TDW Delaware, Inc.
- Pipeline pig with retractable scraper21 Mar 2024US 2024/0091827 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Apparatus for transporting equipment through a conduit71US 4,558,751 AExxon Production Research Company · 1985
- Interior pipeline coating process59US 5,230,842 A1993
- Pipeline pig59US 6,500,271 B12002
- Magnetic well cleaning apparatus52US 6,655,462 B1SPS-AFOS International Limited · 2003
- Pipeline pig51US 4,069,535 A1978