C21B 5/026
Of plastic material
Official title: {of plastic material}
C21B5/026 (Of plastic material) appears on 27 US grants and 16 published applications in this corpus.
Search patents in C21B- Granted patents
- 27
- Published applications
- 16
- Assignees
- 19
- Inventors
- 85
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 4 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biocarbon pellets with adjustable grindability index16 Jun 2026US 12,655,362 B2Carbon Technology Holdings, LLC
- Process of production of a polymer product8 Apr 2025US 12,269,926 B2I.Blu S.R.L.
- P process of making pig iron in a blast furnace using pellets containing thermoplastic and cellulosic materials7 Feb 2023US 11,572,597 B2Subcoal International B.V.
- Process for the introduction of inorganic solids into hot liquid melts18 Aug 2015US 9,109,267 B2Sachtleben Chemie GmbH
- Method for the simultaneous production of iron and a crude syngas containing CO and H231 Mar 2015US 8,992,663 B2Thyssenkrupp Uhde GmbH
- Methods for producing ferrous alloys in metallurgical furnaces16 Jan 2025US 2025/0019781 A1
- Process of production of a polymer product6 Oct 2022US 2022/0315724 A1I.Blu S.R.L.
- Biocarbon pellets with adjustable grindability index21 Jul 2022US 2022/0228080 A1Carbon Technology Holdings, LLC
- Processes for producing biocarbon pellets with adjustable grindability index21 Jul 2022US 2022/0228081 A1Carbon Technology Holdings, LLC
- Reactivity-moderated biocarbon pellets21 Jul 2022US 2022/0228082 A1Carbon Technology Holdings, LLC
Most cited
By later US patents
- Method of thermal utilization of waste materials25US 5,550,312 ANoell-DBI Energie-Und Entsorgungstechnik GmbH · 1996
- Rotary hearth furnace for reducing oxides, and method of operating the furnace23US 6,270,552 B1Kawasaki Steel Corporation · 2001
- Process for the gasification of sewage sludge20US 4,793,855 A1988
- Process of recycling iron oxides and plastics in steelmaking16US 5,554,207 AUSX Corporation · 1996
- Method of producing metal from metal oxides15US 4,072,504 AAktiebolaget Svenska Kullagerfabriken · 1978