B01J
Chemical or physical processes
Official title: Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
B01J (Chemical or physical processes) appears on 97,687 US grants and 88,190 published applications in this corpus.
Search patents in B01J- Granted patents
- 97,687
- Published applications
- 88,190
- Assignees
- 22,092
- Inventors
- 161,254
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1446 | 0 |
| 1977 | 1299 | 0 |
| 1978 | 1309 | 0 |
| 1979 | 943 | 0 |
| 1980 | 1187 | 0 |
| 1981 | 1304 | 0 |
| 1982 | 1104 | 0 |
| 1983 | 1160 | 0 |
| 1984 | 1262 | 0 |
| 1985 | 1203 | 0 |
| 1986 | 1097 | 0 |
| 1987 | 1132 | 0 |
| 1988 | 1136 | 0 |
| 1989 | 1361 | 0 |
| 1990 | 1284 | 0 |
| 1991 | 1346 | 0 |
| 1992 | 1506 | 0 |
| 1993 | 1472 | 0 |
| 1994 | 1432 | 0 |
| 1995 | 1363 | 0 |
| 1996 | 1376 | 0 |
| 1997 | 1454 | 0 |
| 1998 | 1741 | 0 |
| 1999 | 1828 | 0 |
| 2000 | 1918 | 0 |
| 2001 | 2035 | 762 |
| 2002 | 2044 | 2543 |
| 2003 | 2080 | 3144 |
| 2004 | 1929 | 3398 |
| 2005 | 1628 | 3128 |
| 2006 | 1768 | 2968 |
| 2007 | 1556 | 2829 |
| 2008 | 1510 | 2816 |
| 2009 | 1676 | 3223 |
| 2010 | 2268 | 3512 |
| 2011 | 2084 | 3340 |
| 2012 | 2116 | 3130 |
| 2013 | 2439 | 3429 |
| 2014 | 2702 | 3709 |
| 2015 | 3064 | 4164 |
| 2016 | 3167 | 3958 |
| 2017 | 3319 | 3905 |
| 2018 | 3218 | 4202 |
| 2019 | 3571 | 4109 |
| 2020 | 3534 | 4263 |
| 2021 | 3249 | 4142 |
| 2022 | 2941 | 4024 |
| 2023 | 2863 | 3827 |
| 2024 | 2779 | 3833 |
| 2025 | 2634 | 3402 |
| 2026 | 1850 | 2430 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B01J 23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in22,161
- B01J 2219/00Chemical, physical or physico-chemical processes in generalIndexing code19,752
- B01J 19/00Chemical, physical or physico-chemical processes in general19,632
- B01J 37/00Processes, in general, for preparing catalysts17,077
- B01J 35/00Catalysts, in general, characterised by their form or physical properties14,580
- B01J 20/00Solid sorbent compositions or filter aid compositions14,053
- B01J 8/00Chemical or physical processes in general, conducted in the presence of fluids10,729
- B01J 21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon9,768
All 41 main groupsShow fewer
- B01J 31/00Catalysts comprising hydrides, coordination complexes or organic compounds9,760
- B01J 29/00Catalysts comprising molecular sieves9,525
- B01J 27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus6,736
- B01J 2208/00Processes carried out in the presence of solid particlesIndexing code6,341
- B01J 2531/00Additional information regarding catalytic systems classified in b01j31/00Indexing code6,277
- B01J 2231/00Catalytic reactions performed with catalysts classified in b01j31/00Indexing code5,900
- B01J 13/00Colloid chemistry4,342
- B01J 2229/00Aspects of molecular sieve catalysts not covered by b01j29/00Indexing code4,062
- B01J 2235/00Indexing scheme associated with group b01j35/00, related to the analysis techniques usedIndexing code3,910
- B01J 2220/00Aspects relating to sorbent materialsIndexing code3,817
- B01J 2523/00Constitutive chemical elements of heterogeneous catalystsIndexing code3,368
- B01J 2/00Processes or devices for granulating materials2,956
- B01J 3/00Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical2,415
- B01J 38/00Regeneration or reactivation of catalysts, in general1,986
- B01J 4/00Feed or outlet devices1,907
- B01J 39/00Cation exchange1,779
- B01J 47/00Ion-exchange processes in general1,740
- B01J 41/00Anion exchange1,297
- B01J 12/00Chemical processes in general for reacting gaseous media with gaseous media1,029
- B01J 49/00Regeneration or reactivation of ion-exchangers945
- B01J 10/00Chemical processes in general for reacting liquid with gaseous media other than792
- B01J 7/00Apparatus for generating gases767
- B01J 6/00Heat treatments such as calcining760
- B01J 2203/00Processes utilising sub- or super atmospheric pressureIndexing code537
- B01J 2540/00Compositional aspects of coordination complexes or ligands in catalyst systemsIndexing code509
- B01J 45/00Ion-exchange in which a complex or a chelate is formed499
- B01J 14/00Chemical processes in general for reacting liquids with liquids352
- B01J 25/00Catalysts of the raney type319
- B01J 33/00Protection of catalysts310
- B01J 2204/00Aspects relating to feed or outlet devicesIndexing code289
- B01J 15/00Chemical processes in general for reacting gaseous media with non-particulate solids268
- B01J 16/00Chemical processes in general for reacting liquids with non- particulate solids130
- B01J 43/00Amphoteric ion-exchange, i.e. using ion-exchangers having cationic and anionic groups117
Recent patents
- Method and a drum coater for coating small items, such as tablets, and a coating system comprising such drum coaters6 Oct 2026US 12,751,900 B2
- Column comprising particles6 Oct 2026US 12,752,220 B2Agilent Technologies, Inc.
- Method for adjusting grouting parameters in preparation of ceramic composite fiber-based catalytic filter tube, and method and device for preparing ceramic composite fiber-based catalytic filter tube6 Oct 2026US 12,752,223 B2Zhejiang Zhiyuan Environmental Technology Co., Ltd
- Exhaust gas purification catalyst6 Oct 2026US 12,752,237 B2Cataler Corporation
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- Polysiloxane, method for its production and deodorant comprising it8 Oct 2026US 2026/0306689 A1Sagami Chemical Research Institute
- Method to Encapsulate Metal Organic Frameworks with Polymers to form Highly Porous Microbeads8 Oct 2026US 2026/0306894 A1TDA Research, Inc.
- Processes for sorbent regeneration8 Oct 2026US 2026/0306995 A1Shell USA, Inc.
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Process for amplifying nucleic acid sequences5,960US 4,683,202 ACetus Corporation · 1987
- Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof1,998US 5,143,854 AAffymax Technologies N.V. · 1992
- Uncharged morpholino-based polymers having achiral intersubunit linkages1,700US 5,034,506 AAnti-Gene Development Group · 1991
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995
- End use applications of biodegradable polymers1,525US 5,444,113 AEcopol, LLC · 1995