B01D 21/0075
Contact surfaces having surface features
Official title: {Contact surfaces having surface features}
B01D21/0075 (Contact surfaces having surface features) appears on 49 US grants and 33 published applications in this corpus.
Search patents in B01D- Granted patents
- 49
- Published applications
- 33
- Assignees
- 45
- Inventors
- 107
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 4 |
| 2011 | 2 | 0 |
| 2012 | 2 | 4 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 1 |
| 2021 | 0 | 4 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coalescer plate with phyllotaxis-derived pattern11 Aug 2026US 12,702,938 B2Saudi Arabian Oil Company
- Sedimentation plate, sedimentation assembly, and sedimentation module4 Feb 2025US 12,214,300 B2Shandong Hotone Environmental Technology Co., Ltd.
- Coalescer plate with phyllotaxis-derived pattern4 Jul 2023US 11,691,093 B2Saudi Arabian Oil Company
- Wastewater dissolved-air floatation apparatus combined with precipitation tank having sloped plates14 Jun 2022US 11,358,073 B2
- Lamella for clarifier and lamellar module for clarifier15 Feb 2022US 11,247,146 B2Atca Asesoria Proyectos E Instalaciones, S.L.
- Methods and kits for removing particles from fluids18 Jun 2026US 2026/0168897 A1Solventum Intellectual Properties Company
- Particle separator system, materials, and methods of use21 May 2026US 2026/0138133 A1
- Hydrodynamic stormwater separator13 Nov 2025US 2025/0345725 A1Contech Engineered Solutions LLC
- Sedimentation plate, sedimentation assembly, and sedimentation module3 Oct 2024US 2024/0325944 A1Shandong Hotone Environmental Technology Co., Ltd.
- Coalescer plate with phyllotaxis-derived pattern27 Jul 2023US 2023/0233958 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Separation apparatus and method71US 5,840,198 AInternational Fluid Separation Pty Ltd · 1998
- Apparatus and methods for separating solids from flowing liquids or gases60US 5,788,848 A1998
- Lamella gravity separator51US 4,889,624 AThe Graver Company · 1989
- Reversible flow, inclined plate clarifier35US 4,089,782 A1978
- Apparatus for separating solids and liquid components33US 4,278,545 AThe Bendix Corporation · 1981