C10G 9/20
Tube furnaces
C10G9/20 (Tube furnaces) appears on 365 US grants and 358 published applications in this corpus.
Search patents in C10G- Granted patents
- 365
- Published applications
- 358
- Assignees
- 173
- Inventors
- 786
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 1 |
| 2002 | 7 | 9 |
| 2003 | 12 | 7 |
| 2004 | 4 | 6 |
| 2005 | 3 | 20 |
| 2006 | 5 | 13 |
| 2007 | 16 | 18 |
| 2008 | 13 | 20 |
| 2009 | 10 | 14 |
| 2010 | 12 | 9 |
| 2011 | 10 | 13 |
| 2012 | 8 | 18 |
| 2013 | 8 | 6 |
| 2014 | 14 | 15 |
| 2015 | 12 | 6 |
| 2016 | 8 | 12 |
| 2017 | 9 | 11 |
| 2018 | 10 | 18 |
| 2019 | 13 | 13 |
| 2020 | 15 | 16 |
| 2021 | 19 | 11 |
| 2022 | 10 | 28 |
| 2023 | 4 | 29 |
| 2024 | 18 | 18 |
| 2025 | 11 | 18 |
| 2026 | 18 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Shell-and-tube heat exchanger, method of exchanging heat and use of heat exchanger22 Sep 2026US 12,741,261 B2Technip Energies France
- Internally profiled tubes18 Aug 2026US 12,710,236 B2Paralloy Limited
- Furnace for cracking hydrocarbons and method of operation therefor14 Jul 2026US 12,680,030 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Multi row radiant coil arrangement of a cracking heater for olefin production7 Jul 2026US 12,674,101 B2Lummus Technology Inc.
- Processes and systems for co-processing a hydrocarbon feed and a heavy feed containing a plastic material23 Jun 2026US 12,662,635 B2ExxonMobile Technology and Engineering Company
- Direct heating electric tube for upgrading hydrocarbons with controlled tube material temperature8 Oct 2026US 2026/0308458 A1Dow Global Technologies LLC
- A method of decoking a cracking furnace20 Aug 2026US 2026/0242673 A1Dow Global Technologies LLC
- Systems for oxyfuel combustion furnaces with heat recapture and reduced recirculation of flue gas23 Jul 2026US 2026/0208135 A1Sabic Global Technologies B.V.
- Methods for processing chemicals and reactor systems utilizing tubular reactors16 Jul 2026US 2026/0199864 A1Dow Global Technologies LLC
- Process to Hydrothermally Produce Gases From Residue Streams Using a Series of Reactors25 Jun 2026US 2026/0176135 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Thermal cracking of crude oil and crude oil fractions containing pitch in an ethylene furnace122US 6,632,351 B1Shell Oil Company · 2003
- Method of preheating hydrocarbons for thermal cracking85US 4,361,478 ALinde Aktiengesellschaft · 1982
- Processes and systems for making recycle content hydrocarbons55US 11,319,262 B2Eastman Chemical Company · 2022
- Process for cracking low-quality feed stock and system used for said process55US 5,580,443 AMitsui Petrochemical Industries, Ltd. · 1996
- Process and apparatus for cracking hydrocarbon feedstock containing resid55US 7,220,887 B2ExxonMobil Chemical Patents Inc. · 2007