B01J 27/28
Regeneration or reactivation
B01J27/28 (Regeneration or reactivation) appears on 307 US grants and 175 published applications in this corpus.
Search patents in B01J- Granted patents
- 307
- Published applications
- 175
- Assignees
- 164
- Inventors
- 750
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 13 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 2 |
| 2003 | 3 | 1 |
| 2004 | 6 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 7 |
| 2007 | 3 | 11 |
| 2008 | 3 | 11 |
| 2009 | 2 | 7 |
| 2010 | 15 | 12 |
| 2011 | 4 | 3 |
| 2012 | 6 | 8 |
| 2013 | 6 | 10 |
| 2014 | 7 | 4 |
| 2015 | 7 | 13 |
| 2016 | 7 | 11 |
| 2017 | 6 | 6 |
| 2018 | 9 | 13 |
| 2019 | 10 | 15 |
| 2020 | 11 | 6 |
| 2021 | 10 | 4 |
| 2022 | 3 | 7 |
| 2023 | 5 | 4 |
| 2024 | 4 | 6 |
| 2025 | 2 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for rejuvenating a catalyst from a hydroprocessing and/or hydrocracking process19 May 2026US 12,629,669 B2Ifp Energies Nouvelles
- Regeneration method and application of nitrogen-containing carbon catalyst14 Oct 2025US 12,440,829 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Process for one-step conversion of lignocellulosic material to hydrocarbon products and catalyst for use in said process11 Feb 2025US 12,221,581 B2RISE Research Institutes of Sweden AB
- Method for regenerating a catalyst which is spent and regenerated by a hydrodesulfurization process of gasolines28 May 2024US 11,992,826 B2Ifp Energies Nouvelles
- Method for rejuvenating a nonregenerated spent catalyst from a process for the hydrodesulfurization of gasolines5 Mar 2024US 11,918,982 B2Ifp Energies Nouvelles
- Method for rejuvenating a catalyst from a hydroprocessing and/or hydrocracking process15 Jan 2026US 2026/0014554 A1Ifp Energies Nouvelles
- Integrated naphtha reforming and benzyl toluene production process12 Jun 2025US 2025/0188004 A1Saudi Arabian Oil Company
- Process for one-step conversion of lignocellulosic material to hydrocarbon products and catalyst for use in said process1 May 2025US 2025/0136872 A1RISE Research Institutes of Sweden AB
- Carbon Electrode Material for Improving the Performance of Supercapacitors and Method of Making Carbon Electrode Material13 Feb 2025US 2025/0051167 A1United States Department of Energy
- Carbon Electrode Material for Improving the Performance of Supercapacitors and Method of Making Carbon Electrode Material13 Feb 2025US 2025/0054708 A1United States Department of Energy
Most cited
By later US patents
- Extraction process for removal of impurities from terephthalic acid filtrate142US 4,939,297 AEastman Kodak Company · 1990
- BF.sub.3 gas recovery process79US 5,811,616 AAmoco Corporation · 1998
- Isoparaffin alkylation using a lewis acid promoted transition alumina catalyst55US 5,157,197 ACatalytica, Inc. · 1992
- Process for alkylation of isoparaffin with olefin39US 6,492,571 B1China Petroleum Corporation · 2002
- Recovery of double metal cyanide complex catalyst from a polymer38US 5,010,047 AARCO Chemical Technology, L. P. · 1991