CPC technology class · B03
B03C - Magnetic Or Electrostatic Separation Of Solid Materials F…
Magnetic or electrostatic separation of solid materials from solid materials or fluids; separation by high-voltage electric fields. 2,224 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 2,224
- US patents granted
- #1/3
- in B03
- 63.7%
- B03 class share
- -3%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Magnetic Or Electrostatic Separation Of Solid Materials F… ranks #359 of 670 CPC technology areas - 2,224 US patents granted since 2015, with recorded grant volume down 3% over five years.
- #359
- of 670 CPC technology areas
- 2,224
- US patents granted, 2015–2025
- Lg
- leading assignee (36)
- -3%
- grant velocity, last 5 yrs
How B03C's grant cadence moved
Between 2020–2024, B03C recorded 956 grants versus 984 in 2015–2019 (-3% equal-window velocity). Across complete years, output peaked in 2024 at 207 grants and bottomed in 2023 at 163 (+27% peak-over-trough). Lead assignee Adey Holdings (2008) Limited holds 1.4% of the class ; the top three share 3.3%.
Leaderboard read
B03C concentration, lead at 1.4%
Adey Holdings (2008) Limited leads this historical grant record at 1.4% of B03C - us corporation assignees hold 60% of class grants (446 of 744). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 1.4%
- Top three share
- 3.3%
- Lead over #2
- 8
31 of 2,224 grants
of the class's recorded grants
more grants than Berkeley Lights, Inc.
Where B03C sits inside B03
Among 3 subclasses in B03 (Separation OF Solid Materials Using Liquids OR Using Pneumatic Tables OR JIGS; Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electr), B03C ranks #1 and holds 63.7% of the parent class's 3,493 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.
Rising assignees active in B03C
Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.
- #1 H2Plus Operations, LLC 8.00x 0 → 8 company-wide · 6 in B03C
- #2 Eisenmann GMBH 8.00x 1 → 8 company-wide · 5 in B03C
- #3 Nanjing GenScript Biotech Co., Ltd. 8.00x 0 → 8 company-wide · 5 in B03C
- #4 Applied Cells Inc. 5.00x 0 → 5 company-wide · 5 in B03C
- #5 Exact Sciences Corporation 4.00x 8 → 32 company-wide · 12 in B03C
B03C grants by year, peak 2024 (207)
US utility-patent grants per year in B03C, 2015–2025 - recent five years are down 3% versus 2015–2019.
Who leads B03C?
The 12 most active assignees in Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields - wider bars mean more grants
- Adey Holdings (2008)
Adey Holdings (2008) Limited
31 patents
- Berkeley Lights
Berkeley Lights, Inc.
23 patents
- Global Plasma…
Global Plasma Solutions, Inc.
19 patents
- Cidra Corporate…
Cidra Corporate Services LLC
15 patents
- Biological Dynamics
Biological Dynamics, Inc.
13 patents
- Exact Sciences 12
Exact Sciences Corporation
12 patents
- Cameron Solutions 12
Cameron Solutions, Inc.
12 patents
- Qwtip 11
Qwtip LLC
11 patents
- Gen-probe Incorporated 10
Gen-probe Incorporated
10 patents
- Advanced Liquid Logic 10
Advanced Liquid Logic, Inc.
10 patents
- Genapsys 9
Genapsys, Inc.
9 patents
- Cameron International 8
Cameron International Corporation
8 patents
What this shows Lg is the most active filer in B03C, holding 36 of the 2,224 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.
View data table
| Rank | Company | Patents in B03C |
|---|---|---|
| #1 | Adey Holdings (2008) Limited | 31 |
| #2 | Berkeley Lights, Inc. | 23 |
| #3 | Global Plasma Solutions, Inc. | 19 |
| #4 | Cidra Corporate Services LLC | 15 |
| #5 | Biological Dynamics, Inc. | 13 |
| #6 | Exact Sciences Corporation | 12 |
| #7 | Cameron Solutions, Inc. | 12 |
| #8 | Qwtip LLC | 11 |
| #9 | Gen-probe Incorporated | 10 |
| #10 | Advanced Liquid Logic, Inc. | 10 |
| #11 | Genapsys, Inc. | 9 |
| #12 | Cameron International Corporation | 8 |
| #13 | Sysmex Corporation | 8 |
| #14 | Luminex Corporation | 8 |
| #15 | Menarini Silicon Biosystems S.p.A. | 8 |
| #16 | Environmental Management Confederation, Inc. | 8 |
| #17 | Fluid-Screen, Inc. | 8 |
| #18 | Microjet Technology Co., Ltd. | 7 |
| #19 | Inguran, LLC | 7 |
| #20 | Agents AIR LLC | 7 |
Footprint here vs. claim strategy
Each dot is a leading B03C assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.
Classes near B03C's 2,224-grant footprint
Nationwide nearest neighbors for B03C (#359 of 670 by volume ; lead share 1.6%) - not the B03 parent-class siblings above.
Nearest by grant volume
What to do with this data
B03C in context - here's where to go next.
- Adey Holdings (2008) Limited leads B03C with 31 grants in this class. See full portfolio
- B03C ranks #359 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class B03, the largest sibling subclass is B03B with 658 grants. Explore B03B
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Frequently Asked Questions
Which company holds the most patents in B03C?
LG Electronics Inc. leads B03C with 36 patents (1.4% of the subclass). By PatentsView assignee type, us corporations account for 60% of class grants.
Which B03C assignees grew fastest recently?
Among assignees with ≥5 grants in B03C, H2Plus Operations, LLC shows the highest company-wide grant multiple (8.00x: 0 grants in 2019–2021 → 8 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.
How does B03C compare inside parent class B03?
Inside B03 (Separation OF Solid Materials Using Liquids OR Using Pneumatic Tables OR JIGS; Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electr), B03C ranks #1 of 3 subclasses by grant volume and holds 63.7% of the parent class total. The largest sibling is B03B (658 grants).
Data sources
Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.