F25J 2280/00
Control of the process or apparatus
F25J2280/00 (Control of the process or apparatus) appears on 394 US grants and 436 published applications in this corpus.
Search patents in F25J- Granted patents
- 394
- Published applications
- 436
- Assignees
- 177
- Inventors
- 833
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 1 |
| 2002 | 8 | 9 |
| 2003 | 9 | 7 |
| 2004 | 4 | 15 |
| 2005 | 9 | 9 |
| 2006 | 9 | 15 |
| 2007 | 11 | 13 |
| 2008 | 7 | 10 |
| 2009 | 12 | 11 |
| 2010 | 1 | 23 |
| 2011 | 2 | 13 |
| 2012 | 6 | 21 |
| 2013 | 10 | 15 |
| 2014 | 10 | 17 |
| 2015 | 10 | 26 |
| 2016 | 11 | 16 |
| 2017 | 22 | 17 |
| 2018 | 18 | 33 |
| 2019 | 19 | 21 |
| 2020 | 16 | 21 |
| 2021 | 15 | 22 |
| 2022 | 13 | 30 |
| 2023 | 17 | 14 |
| 2024 | 19 | 24 |
| 2025 | 19 | 13 |
| 2026 | 11 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25J 2280/02Control in general, load changes, different modes , measurementsIndexing code236
- F25J 2280/40Control of freezing of componentsIndexing code62
- F25J 2280/10Control for or during start-up and cooling down of the installationIndexing code56
- F25J 2280/20Control for stopping, deriming or defrosting after an emergency shut-down of theIndexing code35
- F25J 2280/30Control of a discontinuous or intermittent processIndexing code26
- F25J 2280/50Advanced process controlIndexing code26
Recent patents
- Controllable injection for implementing different local refrigerant distribution6 Oct 2026US 12,753,975 B2Linde Aktiengesellschaft
- Dual temperature liquid oxygen subcooling in an air separation unit22 Sep 2026US 12,742,591 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryo-collection systems and related methods and hyperpolarizer systems22 Sep 2026US 12,742,592 B2Polarean, Inc.
- Method and system for producing a liquefied natural gas product18 Aug 2026US 12,710,225 B2Linde Aktiengesellschaft
- Solvent injection for solids prevention in an LNG plant14 Jul 2026US 12,680,755 B2ConocoPhillips Company
- Single Column Nitrogen Rejection Unit20 Aug 2026US 2026/0243507 A1Chart Energy & Chemicals, Inc.
- Boil-off gas reliquefaction system with dual cooling sources13 Aug 2026US 2026/0235350 A1Atlas Copco Energas GmbH
- Method for separating nitrogen from lng13 Aug 2026US 2026/0235353 A1Linde Aktiengesellschaft
- Configurations and methods for ngl recovery for high nitrogen content feed gases13 Aug 2026US 2026/0235354 A1Fluor Technologies Corporation
- Method and apparatus for venting a gas6 Aug 2026US 2026/0225038 A1L'Air Liquide Societe Anonyme Pour L'Etude Et L'Etude Et L'Exploitation Des Procedes Georges Claude
Most cited
By later US patents
- Clean air engines transportation and other power applications153US 5,680,764 AClean Energy Systems, Inc. · 1997
- Process for liquefying a natural gas stream containing at least one freezable component123US 5,956,971 AExxon Production Research Company · 1999
- Operation method for integrated gasification combined cycle power generation system119US 5,901,547 AAir Products and Chemicals, Inc. · 1999
- Hydrocarbon gas processing115US 4,854,955 AElcor Corporation · 1989
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002