B01F 35/71
Feed mechanisms
Official title: Feed mechanisms (with proportioning B01F35/80)
B01F35/71 (Feed mechanisms) appears on 3,051 US grants and 3,220 published applications in this corpus.
Search patents in B01F- Granted patents
- 3,051
- Published applications
- 3,220
- Assignees
- 1,980
- Inventors
- 6,805
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 14 | 0 |
| 1978 | 16 | 0 |
| 1979 | 17 | 0 |
| 1980 | 23 | 0 |
| 1981 | 18 | 0 |
| 1982 | 19 | 0 |
| 1983 | 14 | 0 |
| 1984 | 32 | 0 |
| 1985 | 24 | 0 |
| 1986 | 17 | 0 |
| 1987 | 26 | 0 |
| 1988 | 30 | 0 |
| 1989 | 33 | 0 |
| 1990 | 26 | 0 |
| 1991 | 23 | 0 |
| 1992 | 28 | 0 |
| 1993 | 33 | 0 |
| 1994 | 32 | 0 |
| 1995 | 32 | 0 |
| 1996 | 40 | 0 |
| 1997 | 35 | 0 |
| 1998 | 31 | 0 |
| 1999 | 46 | 0 |
| 2000 | 47 | 0 |
| 2001 | 71 | 28 |
| 2002 | 48 | 78 |
| 2003 | 58 | 89 |
| 2004 | 47 | 86 |
| 2005 | 63 | 94 |
| 2006 | 51 | 77 |
| 2007 | 37 | 73 |
| 2008 | 44 | 81 |
| 2009 | 39 | 79 |
| 2010 | 41 | 94 |
| 2011 | 59 | 80 |
| 2012 | 71 | 86 |
| 2013 | 57 | 122 |
| 2014 | 84 | 126 |
| 2015 | 100 | 214 |
| 2016 | 112 | 177 |
| 2017 | 128 | 170 |
| 2018 | 158 | 164 |
| 2019 | 167 | 184 |
| 2020 | 150 | 212 |
| 2021 | 144 | 183 |
| 2022 | 153 | 173 |
| 2023 | 124 | 139 |
| 2024 | 144 | 138 |
| 2025 | 147 | 150 |
| 2026 | 72 | 123 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 35/717Characterised by the means for feeding the components to the mixer2,322
- B01F 35/712For feeding fluids616
- B01F 35/713Comprising breaking packages or parts thereof459
- B01F 35/716Characterised by the relative arrangement of the containers for feeding or mixing353
- B01F 35/714For feeding predetermined amounts282
- B01F 35/715Feeding the components in several steps195
- B01F 35/711For feeding a mixture of components, i.e. solids in liquid, solids in93
Recent patents
- Method for adjusting grouting parameters in preparation of ceramic composite fiber-based catalytic filter tube, and method and device for preparing ceramic composite fiber-based catalytic filter tube6 Oct 2026US 12,752,223 B2Zhejiang Zhiyuan Environmental Technology Co., Ltd
- Microwave networks, waveguides, mixing carts, methods of supplying gas, and gas management systems for radiation therapy machines6 Oct 2026US 12,752,245 B2Varian Medical Systems, Inc.
- System for fully implementing automated liquid dispensing on multiple relay tanks6 Oct 2026US 12,752,246 B2Lisure Science (Suzhou) Co., Ltd
- Direct high pressure slurry injection fracturing system and method6 Oct 2026US 12,752,247 B1
- Mineral spring generator29 Sep 2026US 12,746,517 B2National Taipei University of Technology
- Gas supply device8 Oct 2026US 2026/0307021 A1BMI TECH Co., LTD.
- Method and Device For Laboratory Formulation and Chemical Vending8 Oct 2026US 2026/0307029 A1
- Methods and devices for radioactive waste solidification8 Oct 2026US 2026/0311904 A1AVANTech, Inc.
- Liquid-sourdough manufacturing installation and method24 Sep 2026US 2026/0283163 A1Mauri Technology B.V.
- Systems, Methods, and Apparatuses for Producing and Packaging Fluids24 Sep 2026US 2026/0283904 A1DEKA Products Limited Partnership
Most cited
By later US patents
- Dispenser1,019US 5,894,841 APonwell Enterprises Limited · 1999
- Methods and apparatus for the detection of an analyte utilizing mesoscale flow systems1,006US 5,637,469 AThe Trustees of the University of Pennsylvania · 1997
- Integrated nucleic acid diagnostic device1,005US 5,856,174 AAffymetrix, Inc. · 1999
- Integrated nucleic acid diagnostic device989US 5,922,591 AAffymetrix, Inc. · 1999
- Capillary flow device951US 4,963,498 ABiotrack, Inc. · 1990