B28B 3/26
Extrusion dies
B28B3/26 (Extrusion dies) appears on 513 US grants and 352 published applications in this corpus.
Search patents in B28B- Granted patents
- 513
- Published applications
- 352
- Assignees
- 135
- Inventors
- 760
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 11 | 0 |
| 1989 | 17 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 17 | 0 |
| 1997 | 25 | 0 |
| 1998 | 24 | 0 |
| 1999 | 15 | 0 |
| 2000 | 7 | 0 |
| 2001 | 19 | 2 |
| 2002 | 11 | 16 |
| 2003 | 10 | 5 |
| 2004 | 9 | 19 |
| 2005 | 3 | 15 |
| 2006 | 9 | 14 |
| 2007 | 11 | 9 |
| 2008 | 8 | 14 |
| 2009 | 9 | 13 |
| 2010 | 11 | 16 |
| 2011 | 9 | 12 |
| 2012 | 10 | 8 |
| 2013 | 8 | 8 |
| 2014 | 8 | 6 |
| 2015 | 3 | 20 |
| 2016 | 8 | 11 |
| 2017 | 6 | 22 |
| 2018 | 11 | 18 |
| 2019 | 14 | 18 |
| 2020 | 17 | 21 |
| 2021 | 17 | 22 |
| 2022 | 18 | 34 |
| 2023 | 15 | 10 |
| 2024 | 22 | 9 |
| 2025 | 12 | 6 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B28B 3/269For multi-channeled structures348
- B28B 3/2645Using means for inserting reinforcing members68
- B28B 3/2636Using means for co-extruding different materials33
- B28B 3/2672Means for adjusting the flow inside the die22
- B28B 3/2654Means for heating or cooling the die12
- B28B 3/2663Exchangeable wear parts11
- B28B 3/2681Adjustable dies11
- B28B 3/2627Using means for making hollow objects with transverse walls8
Recent patents
- Methods of plugging a permeable porous cellular body15 Sep 2026US 12,734,726 B2Corning Incorporated
- Mechanism to control the density gradient in three-dimensionally printed material28 Apr 2026US 12,611,818 B2ARC Ventures B.V.
- Drainage plates for ceramic extrusion31 Mar 2026US 12,589,521 B2Corning Incorporated
- Method for manufacturing pillar-shaped honeycomb fired body17 Mar 2026US 12,577,175 B2NGK Insulators, Ltd.
- Ceramic honeycomb structure and honeycomb-molding die10 Mar 2026US 12,569,809 B2Proterial, Ltd.
- Apparatus for additive manufacturing of reinforced structures and a method for additive manufacturing of reinforced structures30 Jul 2026US 2026/0216913 A1Knauf Gips KG
- Printing System and 3D Printing Process4 Jun 2026US 2026/0152957 A1Putzmeister Engineering GmbH
- Honeycomb structure and method for producing same7 May 2026US 2026/0124579 A1NGK Insulators, Ltd.
- Brick and manufacturting method therefor19 Feb 2026US 2026/0049029 A1
- Processes and/or Machines for Producing Continuous Plastic Deformation, and/or Compositions and/or Manufactures Produced Thereby16 Oct 2025US 2025/0319517 A1
Most cited
By later US patents
- Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets312US 5,830,548 AE. Khashoggi Industries · 1998
- Sheets having a highly inorganically filled organic polymer matrix172US 5,508,072 AE. Khashoggi Industries · 1996
- Articles of manufacture fashioned from sheets having a highly inorganically filled organic polymer matrix171US 5,506,046 AE. Khashoggi Industries · 1996
- Starch-based compositions having uniformly dispersed fibers used to manufacture high strength articles having a fiber-reinforced, starch-bound cellular matrix165US 5,679,145 AE. Khashoggi Industries · 1997
- Laminated articles of manufacture fashioned from sheets having a highly inorganically filled organic polymer matrix154US 5,928,741 AE. Khashoggi Industries · 1999