B01J 37/0201
Impregnation
Official title: {Impregnation}
B01J37/0201 (Impregnation) appears on 4,247 US grants and 5,316 published applications in this corpus.
Search patents in B01J- Granted patents
- 4,247
- Published applications
- 5,316
- Assignees
- 1,673
- Inventors
- 11,515
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 19 | 0 |
| 1978 | 22 | 0 |
| 1979 | 9 | 0 |
| 1980 | 8 | 0 |
| 1981 | 15 | 0 |
| 1982 | 5 | 0 |
| 1983 | 12 | 0 |
| 1984 | 14 | 0 |
| 1985 | 19 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 17 | 0 |
| 1989 | 18 | 0 |
| 1990 | 8 | 0 |
| 1991 | 19 | 0 |
| 1992 | 9 | 0 |
| 1993 | 20 | 0 |
| 1994 | 28 | 0 |
| 1995 | 31 | 0 |
| 1996 | 33 | 0 |
| 1997 | 24 | 0 |
| 1998 | 27 | 0 |
| 1999 | 44 | 0 |
| 2000 | 37 | 0 |
| 2001 | 55 | 13 |
| 2002 | 49 | 58 |
| 2003 | 54 | 113 |
| 2004 | 56 | 114 |
| 2005 | 64 | 113 |
| 2006 | 51 | 98 |
| 2007 | 53 | 136 |
| 2008 | 57 | 172 |
| 2009 | 86 | 150 |
| 2010 | 123 | 230 |
| 2011 | 100 | 231 |
| 2012 | 128 | 270 |
| 2013 | 158 | 294 |
| 2014 | 205 | 250 |
| 2015 | 239 | 300 |
| 2016 | 244 | 287 |
| 2017 | 212 | 233 |
| 2018 | 236 | 259 |
| 2019 | 246 | 255 |
| 2020 | 224 | 276 |
| 2021 | 214 | 272 |
| 2022 | 207 | 308 |
| 2023 | 206 | 281 |
| 2024 | 199 | 237 |
| 2025 | 169 | 226 |
| 2026 | 128 | 140 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 37/0203The impregnation liquid containing organic compounds1,136
- B01J 37/0207Pretreatment of the support869
- B01J 37/0205In several steps755
- B01J 37/0209Involving a reaction between the support and a fluid395
- B01J 37/0213Preparation of the impregnating solution339
- B01J 37/0211Using a colloidal suspension251
Recent patents
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- Composite catalyst physically mixed with nickel oxide and method for manufacturing the same1 Oct 2026US 2026/0295567 A1Seoul National University R&Db Foundation
- Systems, methods, and catalysts for syngas, chemical, and fuel production24 Sep 2026US 2026/0284639 A1Dimensional Energy, Inc.
Most cited
By later US patents
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
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- Organometal compound catalyst286US 6,391,816 B1Phillips Petroleum Company · 2002
- Compositions that can produce polymers252US 7,601,665 B2Chevron Phillips Chemical Company LP · 2009
- System and method for networked loyalty program176US 7,398,225 B2American Express Travel Related Services Company, Inc. · 2008