B01D 53/84
Biological processes
B01D53/84 (Biological processes) appears on 575 US grants and 678 published applications in this corpus.
Search patents in B01D- Granted patents
- 575
- Published applications
- 678
- Assignees
- 446
- Inventors
- 1,531
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 13 | 0 |
| 1996 | 13 | 0 |
| 1997 | 22 | 0 |
| 1998 | 14 | 0 |
| 1999 | 19 | 0 |
| 2000 | 19 | 0 |
| 2001 | 22 | 4 |
| 2002 | 9 | 11 |
| 2003 | 23 | 20 |
| 2004 | 9 | 16 |
| 2005 | 9 | 14 |
| 2006 | 1 | 9 |
| 2007 | 9 | 14 |
| 2008 | 6 | 24 |
| 2009 | 7 | 24 |
| 2010 | 9 | 33 |
| 2011 | 12 | 33 |
| 2012 | 16 | 28 |
| 2013 | 21 | 34 |
| 2014 | 16 | 26 |
| 2015 | 13 | 25 |
| 2016 | 9 | 21 |
| 2017 | 16 | 33 |
| 2018 | 11 | 28 |
| 2019 | 19 | 35 |
| 2020 | 18 | 30 |
| 2021 | 38 | 48 |
| 2022 | 23 | 37 |
| 2023 | 20 | 43 |
| 2024 | 22 | 31 |
| 2025 | 27 | 29 |
| 2026 | 18 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquefaction process6 Oct 2026US 12,753,353 B1
- Microorganism deodorizing device and deodorization treatment system18 Aug 2026US 12,708,873 B2Miraie Corporation
- Method and device for removing ammonia from exhaust air from a livestock stable4 Aug 2026US 12,697,583 B2
- Systems and methods for capturing greenhouse gases utilizing algae28 Jul 2026US 12,691,412 B2Saudi Arabian Oil Company
- Use of Aspergillus cejpii in metabolism of flammable and explosive gas21 Jul 2026US 12,685,965 B1Northwest A&F University Shenzhen Research Inst
- Methods for improving nutrient content in plant based animal feedstocks17 Sep 2026US 2026/0271849 A1Biolumic Limited
- Method of sequestering atmospheric carbon27 Aug 2026US 2026/0249241 A1Fabricnano Limited
- Carbon sequestration27 Aug 2026US 2026/0249242 A1Oxford University Innovation Limited
- A system for generating and using nox gases in an algae growth system13 Aug 2026US 2026/0233160 A1Paradigm Fuels Pty Ltd
- A waste conversion method13 Aug 2026US 2026/0234477 A1Cyclion Holdings Pty Ltd
Most cited
By later US patents
- Apparatus for treating indoor air135US 5,221,520 ANorth Carolina Center for Scientific Research, Inc. · 1993
- Apparatus for treating indoor air106US 5,186,903 ANorth Carolina Center for Scientific Research, Inc. · 1993
- Membrane module for gas transfer and membrane supported biofilm process99US 6,645,374 B2Zenon Environmental Inc. · 2003
- Support aerated biofilm reactor91US 5,116,506 AOregon State University · 1992
- Room air purifier75US 5,277,877 ASpace Biospheres Ventures · 1994