B04B 7/14
For separating walls of conical shape
Official title: for separating walls of conical shape
B04B7/14 (For separating walls of conical shape) appears on 82 US grants and 97 published applications in this corpus.
Search patents in B04B- Granted patents
- 82
- Published applications
- 97
- Assignees
- 30
- Inventors
- 165
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 6 |
| 2012 | 2 | 6 |
| 2013 | 3 | 0 |
| 2014 | 6 | 3 |
| 2015 | 3 | 6 |
| 2016 | 2 | 4 |
| 2017 | 4 | 7 |
| 2018 | 4 | 14 |
| 2019 | 6 | 7 |
| 2020 | 4 | 2 |
| 2021 | 10 | 4 |
| 2022 | 5 | 15 |
| 2023 | 3 | 2 |
| 2024 | 5 | 3 |
| 2025 | 5 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separator insert, separator and method for exchanging a separator insert19 May 2026US 12,629,699 B2GEA Westfalia Separator Group GmbH
- Centrifugal separation system and method with flow control to a heavy phase receiving container17 Mar 2026US 12,576,410 B2Alfa Laval Corporate AB
- Disc stack, rotor unit, centrifugal separator, method of providing disc stack, and method of providing rotor unit18 Nov 2025US 12,472,513 B2Alfdex AB
- Process for the continuous production of sub-micron two-dimensional materials such as graphene3 Jun 2025US 12,318,709 B2Black Swan Graphene Inc.
- Method for mounting a stack of separating discs in a centrifugal separator bowl and a tool3 Jun 2025US 12,320,381 B2Alfa Laval Corporate AB
- Separator insert, separator and method for exchanging a separator insert27 Aug 2026US 2026/0249308 A1GEA Westfalia Separator Group GmbH
- Separator disc, combination of separator disc stack and distributor, and centrifuge6 Aug 2026US 2026/0225112 A1GEA Westfalia Separator Group GmbH
- Method and system for purifying contaminated oil25 Jun 2026US 2026/0175141 A1
- Centrifugal separator with optimized disc separation15 Jan 2026US 2026/0014569 A1Tetra Laval Holdings & Finance S. A.
- Method and system for purification of a contaminated product28 Aug 2025US 2025/0269388 A1
Most cited
By later US patents
- Self-driven, cone-stack type centrifuge56US 5,637,217 AFleetguard, Inc. · 1997
- Self-driven, cone-stack type centrifuge39US 5,795,477 AFleetguard, Inc. · 1998
- Truncated conical disc separator33US 4,262,841 A1981
- Inlet device for a centrifugal separator25US 5,921,909 AAlfa-Laval AB · 1999
- Centrifugal separator24US 4,861,329 AAlfa-Laval Separation AB · 1989