F28G 1/125
Forced back and forth by means of flow reversal
Official title: {forced back and forth by means of flow reversal}
F28G1/125 (Forced back and forth by means of flow reversal) appears on 43 US grants and 6 published applications in this corpus.
Search patents in F28G- Granted patents
- 43
- Published applications
- 6
- Assignees
- 15
- Inventors
- 32
- Latest grant
- 7 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 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 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cleaning coke deposits from process equipment7 Feb 2023US 11,571,722 B2Chevron Phillips Chemical Company LP
- Cleaning coke deposits from process equipment12 Jul 2022US 11,383,278 B2Chevron Phillips Chemical Companv LP
- Cleaning coke deposits from process equipment23 Mar 2021US 10,953,443 B2Chevron Phillips Chemical Company LP
- Seal with integrated fluid regulating device8 Sep 2020US 10,767,772 B2Hamilton Sunstrand Corporation
- Cleaning coke deposits from process equipment7 May 2019US 10,279,380 B2Chevron Phillips Chemical Company LP
- Cleaning Coke Deposits from Process Equipment29 Sep 2022US 2022/0305532 A1Chevron Phillips Chemical Company LP
- Cleaning Coke Deposits from Process Equipment3 Jun 2021US 2021/0162471 A1Chevron Phillips Chemical Company LP
- Cleaning Coke Deposits from Process Equipment25 Jul 2019US 2019/0224726 A1Chevron Phillips Chemical Company LP
- Seal with integrated fluid regulating device24 Jan 2019US 2019/0024809 A1Hamilton Sundstrand Corporation
- Cleaning Coke Deposits from Process Equipment2 Nov 2017US 2017/0312796 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Apparatus for cleaning heat exchanger tubes43US 4,583,586 AEbara Corporation · 1986
- Apparatus for cleaning heat exchanger tubes32US 4,124,065 AWater Services of America, Inc. · 1978
- Fluid flow diverter29US 3,973,592 AWater Services of America, Inc. · 1976
- Fluid flow diverter valve with improved flow-through construction29US 4,543,996 AWater Services of America, Inc. · 1985
- Four-way fluid flow diverter valve20US 4,506,703 AWater Services of America, Inc. · 1985