B03C 1/28
Magnetic plugs and dipsticks
B03C1/28 (Magnetic plugs and dipsticks) appears on 1,384 US grants and 1,588 published applications in this corpus.
Search patents in B03C- Granted patents
- 1,384
- Published applications
- 1,588
- Assignees
- 839
- Inventors
- 3,126
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 11 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 14 | 0 |
| 1989 | 11 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 19 | 0 |
| 1996 | 17 | 0 |
| 1997 | 14 | 0 |
| 1998 | 20 | 0 |
| 1999 | 16 | 0 |
| 2000 | 32 | 0 |
| 2001 | 25 | 10 |
| 2002 | 28 | 32 |
| 2003 | 33 | 22 |
| 2004 | 21 | 28 |
| 2005 | 12 | 31 |
| 2006 | 16 | 19 |
| 2007 | 11 | 38 |
| 2008 | 19 | 47 |
| 2009 | 24 | 65 |
| 2010 | 31 | 66 |
| 2011 | 30 | 65 |
| 2012 | 49 | 73 |
| 2013 | 54 | 85 |
| 2014 | 57 | 84 |
| 2015 | 63 | 70 |
| 2016 | 71 | 81 |
| 2017 | 59 | 66 |
| 2018 | 62 | 72 |
| 2019 | 57 | 109 |
| 2020 | 54 | 90 |
| 2021 | 62 | 101 |
| 2022 | 61 | 87 |
| 2023 | 53 | 77 |
| 2024 | 56 | 68 |
| 2025 | 82 | 70 |
| 2026 | 33 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrochemical sensors based on enzyme-linked immunosorbent assay15 Sep 2026US 12,736,496 B1United States of America as represented by the Administrator of NASA
- Separating apparatus of biosubstance and separating method of the same15 Sep 2026US 12,736,550 B2Inventec Appliances Corp.
- Module for attracting and detecting debris1 Sep 2026US 12,723,526 B2Safran Aero Boosters SA
- Position detection unit, clutch actuator with a position detection unit, and vehicle clutch with a position detection unit1 Sep 2026US 12,723,629 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Biological material extraction carrier and biological material extraction method25 Aug 2026US 12,716,063 B2Seiko Epson Corporation
- Biological material purification method and magnetic separation device24 Sep 2026US 2026/0286340 A1Seiko Epson Corporation
- Apparatus and Method for Connecting Magnetic Tubes to Fluid Magnetic Separators27 Aug 2026US 2026/0249305 A1Industrial Magnetics, Inc.
- Devices and methods for removing cancer cells from bloodstream during cancer metastasis20 Aug 2026US 2026/0241089 A1Miracle Heart
- Magnetic assisted separation apparatuses and related methods20 Aug 2026US 2026/0241390 A1Amgen Inc.
- Automatic High Precision Battery Material Assessment System30 Jul 2026US 2026/0219137 A1Mag Ia, Inc.
Most cited
By later US patents
- Apparatus and methods for magnetic separation featuring external magnetic means301US 5,466,574 AImmunivest Corporation · 1995
- Magnetic separation rack for diagnostic assays282US 4,895,650 AGen-Probe Incorporated · 1990
- Method and apparatus for controlling magnetic particles by pipetting machine260US 6,509,193 B1Precision System Science Co., Ltd. · 2003
- Apparatus for magnetic separation featuring external magnetic means234US 5,186,827 AImmunicon Corporation · 1993
- Method and apparatus for separating magnetic particles from a solution221US 5,647,994 ALabsystems Oy · 1997