B22C 1/2293
Natural polymers
Official title: {Natural polymers (B22C1/24, B22C1/26 take precedence)}
B22C1/2293 (Natural polymers) appears on 23 US grants and 11 published applications in this corpus.
Search patents in B22C- Granted patents
- 23
- Published applications
- 11
- Assignees
- 16
- Inventors
- 49
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 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 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 3 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Composition, core and mould for casting and moulding processes6 May 2025US 12,290,854 B2Foseco International Limited
- Tool-less method for making molds, cores, and temporary tools29 Apr 2025US 12,285,798 B2LightSpeed Concepts Inc.
- Investment casting shell binders and compositions24 Sep 2024US 12,097,553 B2Remet Corporation
- Powder investment casting binder and molds derived therefrom14 Sep 2021US 11,117,186 B2IC Ceramic Consulting, LLC
- Binder composition comprising condensed tannin and furfuryl alcohol and its uses5 Aug 2008US 7,407,543 B2Ashland Licensing and Intellectual Property LLC
- Composition, core and mould for casting and moulding processes14 Dec 2023US 2023/0398599 A1Foseco International Limited
- Tool-less method for making molds, cores, and temporary tools2 Dec 2021US 2021/0370388 A1LightSpeed Concepts Inc.
- Investment Casting Shell Binders and Compositions17 Jun 2021US 2021/0178458 A1Remet UK Ltd
- Powder investment casting binder and molds derived therefrom25 Mar 2021US 2021/0086255 A1IC Ceramic Consulting, LLC
- Co-catalysts for polyurethane cold box binders15 Jun 2017US 2017/0165743 A1
Most cited
By later US patents
- Gelatin coated sand core and method of making same54US 6,467,525 B2Hormel Foods Corporation · 2002
- Sand mold member and method52US 5,582,231 AGeneral Motors Corporation · 1996
- Sand mold composition for metal casting50US 4,080,213 AHayashibara Biochemical Laboratories, Incorporated · 1978
- Process for producing inorganic mold48US 6,436,334 B1Fuji Oil Company, Limited · 2002
- Expendable core for casting processes26US 5,320,157 AGeneral Motors Corporation · 1994