C11D 3/1293
Feldspar
Official title: {Feldspar; Perlite; Pumice or Portland cement}
C11D3/1293 (Feldspar) appears on 20 US grants and 14 published applications in this corpus.
Search patents in C11D- Granted patents
- 20
- Published applications
- 14
- Assignees
- 10
- Inventors
- 36
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 5 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and composition10 Feb 2026US 12,545,861 B2For Spills Ltd.
- Personal cleansing compositions comprising expanded perlite microspheres10 Mar 2020US 10,583,071 B2ImerTech SAS
- Cleansing compositions9 Jul 2019US 10,342,746 B2ImerTech SAS
- Personal cleansing compositions comprising spherical perlite microspheres30 Apr 2019US 10,272,020 B2ImerTech SAS
- Liquid treatment composition3 Mar 2015US 8,969,281 B2The Procter & Gamble Company
- Process for the production of fatty acids and isomerized esters5 Jun 2025US 2025/0179002 A1NUOL Green Chemistry LLC
- Composition for making compressed cleaning articles26 Sep 2024US 2024/0318098 A13M Innovative Properties Company
- Method and composition13 Jan 2022US 2022/0010241 A1For Spills Ltd.
- Cleansing compositions19 Sep 2019US 2019/0282456 A1ImerTech SAS
- Cleansing compositions23 Mar 2017US 2017/0079891 A1Imerys Minerals Limited
Most cited
By later US patents
- Abrasive scouring compositions87US 4,051,056 AThe Procter & Gamble Company · 1977
- Detergent composition19US 7,713,921 B2The Procter & Gamble Company · 2010
- Graffiti remover which comprises an active solvent, a secondary solvent, an emollient and a particulate filler and method for its use13US 6,057,276 ADecora, Incorporated · 2000
- Laundry detergents and cleaners with reduced requirement for conventional chemicals11US 4,830,784 AHenkel Kommanditgesellschaft auf Aktien · 1989
- Graffiti remover which comprises an active solvent, a secondary solvent, an emollient and a particulate filler and method for its use9US 5,929,005 ADecora, Incorporated · 1999