B01D 9/005
Selection of auxiliary
Official title: {Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof}
B01D9/005 (Selection of auxiliary) appears on 411 US grants and 559 published applications in this corpus.
Search patents in B01D- Granted patents
- 411
- Published applications
- 559
- Assignees
- 446
- Inventors
- 1,653
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 5 |
| 2003 | 5 | 11 |
| 2004 | 2 | 14 |
| 2005 | 5 | 14 |
| 2006 | 4 | 15 |
| 2007 | 3 | 8 |
| 2008 | 8 | 9 |
| 2009 | 8 | 14 |
| 2010 | 5 | 17 |
| 2011 | 9 | 16 |
| 2012 | 13 | 8 |
| 2013 | 3 | 8 |
| 2014 | 6 | 12 |
| 2015 | 8 | 13 |
| 2016 | 12 | 13 |
| 2017 | 10 | 17 |
| 2018 | 17 | 46 |
| 2019 | 35 | 48 |
| 2020 | 45 | 38 |
| 2021 | 28 | 46 |
| 2022 | 21 | 31 |
| 2023 | 23 | 34 |
| 2024 | 21 | 48 |
| 2025 | 20 | 43 |
| 2026 | 22 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tetraazadodecane based chelating agents for separation of rare earth elements and method therefor6 Oct 2026US 12,752,219 B2Ustav Organicke Chemie A Biochemie Av Cr, V. V. I.
- Reactor and process for the precipitation of a solid product25 Aug 2026US 12,714,950 B2Resourseas S.R.L.
- Vanadium oxide extraction from Bayer process18 Aug 2026US 12,709,550 B2Snf Group
- Method for efficiently extracting and separating high-purity tetrodotoxin from pufferfish viscera18 Aug 2026US 12,709,618 B2Zhongyang Biotechnology (Shanghai) Co., LTD.
- Enantio-specific crystallization system and method thereof28 Jul 2026US 12,691,390 B2Yeda Research and Development Co. Ltd.
- Cascaded axial-flow saltwater crystallization system and use method thereof1 Oct 2026US 2026/0295459 A1Xi'an University of Technology
- Particle size controlled crystallization of perchlorate salts using a continuous flow taylor-vortex reactor10 Sep 2026US 2026/0265054 A1Government of the United States as Represented by the Secretary of the Air Force
- Device and method for removing silicate from reverse osmosis concentrate by induced crystallization3 Sep 2026US 2026/0257147 A1Greentech Environment Co., Ltd.
- A method for the preparation of alumina13 Aug 2026US 2026/0234017 A1Playa One Pty Ltd
- Component separation system6 Aug 2026US 2026/0225002 A1Kabushiki Kaisha Toyota Chou Kenkyusho
Most cited
By later US patents
- Reusable heat pack containing supercooled solution and means for activating same80US 4,077,390 A1978
- Method for producing large crystals of complex molecules39US 6,221,153 B12001
- Equipment assembly for and method of processing particles37US 8,778,181 B1Crititech, Inc. · 2014
- Method for the production of particles33US 7,404,828 B1Glaxo Group Limited · 2008
- Supercritical fluid-assisted nebulization and bubble drying32US 6,630,121 B1The Regents of the University of Colorado · 2003