B08B 9/0551
Control mechanisms therefor
Official title: {Control mechanisms therefor}
B08B9/0551 (Control mechanisms therefor) appears on 130 US grants and 118 published applications in this corpus.
Search patents in B08B- Granted patents
- 130
- Published applications
- 118
- Assignees
- 87
- Inventors
- 281
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 6 |
| 2003 | 6 | 2 |
| 2004 | 2 | 1 |
| 2005 | 4 | 3 |
| 2006 | 0 | 3 |
| 2007 | 0 | 3 |
| 2008 | 2 | 6 |
| 2009 | 1 | 3 |
| 2010 | 4 | 6 |
| 2011 | 4 | 5 |
| 2012 | 1 | 3 |
| 2013 | 3 | 5 |
| 2014 | 7 | 4 |
| 2015 | 4 | 4 |
| 2016 | 3 | 10 |
| 2017 | 7 | 6 |
| 2018 | 3 | 4 |
| 2019 | 5 | 4 |
| 2020 | 8 | 5 |
| 2021 | 7 | 8 |
| 2022 | 5 | 11 |
| 2023 | 5 | 5 |
| 2024 | 7 | 6 |
| 2025 | 8 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Clean head, system and method for use in cleaning a fluid conduit14 Apr 2026US 12,599,941 B2Paradigm Flow Services Limited
- Pig drive, pig drive system and method of using same20 Jan 2026US 12,529,441 B2Grant Prideco, L.P.
- Pipeline descaling tool9 Dec 2025US 12,491,545 B2Saudi Arabian Oil Company
- Pipe pigging system for cleaning and controlling speed of pig2 Dec 2025US 12,485,463 B2Techwin Co., Ltd.
- Hydrocarbon gas emissions control device for pipeline pigging operations18 Nov 2025US 12,472,537 B1The Williams Companies, Inc.
- Method for operating a working apparatus in a pipeline, and working apparatus25 Jun 2026US 2026/0177184 A1
- Velocity control tow pig26 Mar 2026US 2026/0085781 A1Spartan Technology Development Corporation
- Method for Treating and Protecting Equipment Using Nanoparticle Compositions31 Jul 2025US 2025/0243399 A1Pig Sweep, LLC
- Method and internet of things (iot) system for pipeline drying treatment based on smart gas safety supervision5 Jun 2025US 2025/0178043 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Pipeline pig with pressure-equalizing transmitter cavity system20 Feb 2025US 2025/0060064 A1TDW Delaware, Inc.
Most cited
By later US patents
- Pipeline pig59US 6,500,271 B12002
- Chain-like self-moving robot and control system therefor48US 4,621,532 AHitachi, Ltd. · 1986
- Method and a horizontal pipeline pig launching mechanism for sequentially launching pipeline pigs39US 5,139,576 AWestern Gas Processors, Ltd. · 1992
- Unitary pig for use in a pipeline30US 4,413,370 AT. D. Williamson, Inc. · 1983
- Apparatus for use in a pipeline30US 6,190,090 B1Tuboscope Pipeline Services Canada, Inc. · 2001