C01B 33/1435
Using ion exchangers
Official title: {using ion exchangers}
C01B33/1435 (Using ion exchangers) appears on 44 US grants and 47 published applications in this corpus.
Search patents in C01B- Granted patents
- 44
- Published applications
- 47
- Assignees
- 28
- Inventors
- 106
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 4 |
| 2006 | 0 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 3 | 5 |
| 2011 | 2 | 5 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 0 |
| 2018 | 4 | 4 |
| 2019 | 2 | 1 |
| 2020 | 4 | 4 |
| 2021 | 0 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Charge-reversed silica sol14 Jan 2025US 12,195,344 B2Nouryon Chemicals International B. V.
- Silica aerogel preparation method and aerogel prepared using said method25 Jun 2024US 12,017,921 B2Huafeng (Tianjin) New Material Co., LTD.
- Silica-containing insulating composition16 Apr 2024US 11,961,636 B2Nissan Chemical Corporation
- Method for producing silica sol having elongated particle shape13 Feb 2024US 11,897,774 B2Nissan Chemical Corporation
- Method for producing silica sol having elongated particle shape14 Nov 2023US 11,814,295 B2Nissan Chemical Corporation
- Method for producing silica particles, silica particles produced by such method, compositions and uses of such silica particles24 Oct 2024US 2024/0351889 A1Merck Patent GmbH
- Systems and methods for manufacturing an aerogel6 Jun 2024US 2024/0182311 A1
- Silica aerogel preparation method and aerogel prepared using said method12 Aug 2021US 2021/0246038 A1Tianjin Morgan-Kundom Hi-Tech Development Co.,Ltd
- Multimodal Particles for Retention and Drainage for Paper-Making Machines6 May 2021US 2021/0130176 A1Applied Material Solutions, Inc.
- Charge-reversed silica sol7 Jan 2021US 2021/0002139 A1Nouryon Chemicals International B. V.
Most cited
By later US patents
- Low sodium, low metals silica polishing slurries118US 5,230,833 ANalco Chemical Company · 1993
- Method of making colloidal silica45US 6,372,806 B1Nalco Chemical Company · 2002
- Method of making paper32US 6,372,089 B1Nalco Chemical Company · 2002
- Temperature-activated polysilicic acids30US 5,571,494 AJ. M. Huber Corporation · 1996
- Stable colloidal silica aquasols26US 6,486,216 B1Ondeo Nalco Company · 2002