CPC technology class · B09

B09B - Disposal Of Solid Waste

Disposal of solid waste not otherwise provided for. 1,226 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,226
US patents granted: #1/2
in B09: 63.3%
B09 class share: +47%
5-yr velocity

The verdict

According to USPTO PatentsView, Disposal Of Solid Waste ranks #432 of 670 CPC technology areas - 1,226 US patents granted since 2015, with recorded grant volume up 47% over five years.

#432
of 670 CPC technology areas: 1,226
US patents granted, 2015–2025: Loci Controls
leading assignee (40): +47%
grant velocity, last 5 yrs

How B09B's grant cadence moved

Between 2020–2024, B09B recorded 607 grants versus 413 in 2015–2019 (+47% equal-window velocity). Across complete years, output peaked in 2024 at 168 grants and bottomed in 2016 at 77 (+118% peak-over-trough). Lead assignee Loci Controls, Inc. holds 3.3% of the class ; the top three share 7.3%.

Leaderboard read

B09B concentration, lead at 3.3%

Loci Controls, Inc. leads this historical grant record at 3.3% of B09B - us corporation assignees hold 55% of class grants (261 of 475). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 3.3%
Top three share: 7.3%
Lead over #2: 12

Where B09B sits inside B09

Among 2 subclasses in B09 (Disposal OF Solid WASTE; Reclamation OF Contaminated Soil), B09B ranks #1 and holds 63.3% of the parent class's 1,938 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B09C 712

Rising assignees active in B09B

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 Guangdong Brunp Recycling Technology Co., Ltd. 61x 0 → 61 company-wide · 10 in B09B
#2 Hunan Brunp Recycling Technology Co., Ltd. 59x 0 → 59 company-wide · 10 in B09B
#3 JX Metals Corporation 41x 0 → 41 company-wide · 6 in B09B
#4 Hunan Brunp EV Recycling Co., Ltd. 37x 0 → 37 company-wide · 8 in B09B
#5 Continuus Materials Intellectual Property, LLC 9.00x 1 → 9 company-wide · 6 in B09B

B09B grants by year, peak 2024 (168)

US utility-patent grants per year in B09B, 2015–2025 - recent five years are up 47% versus 2015–2019.

Loci Controls

40
Unicharm

28
Deep Isolation

21
Guangdong Brunp…

10
Hunan Brunp Recycling…

10
The Maitland

9
Daiki

8
Hunan Brunp Ev…

8
Powerdyne

8
Chz

8
Lsc Environmental…

7
Food Cycle Science

7

What this shows Loci Controls is the most active filer in B09B, holding 40 of the 1,226 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

View data table

Top patent holders in CPC subclass B09B
Rank	Company	Patents in B09B
#1	Loci Controls, Inc.	40
#2	Unicharm Corporation	28
#3	Deep Isolation, Inc.	21
#4	Guangdong Brunp Recycling Technology Co., Ltd.	10
#5	Hunan Brunp Recycling Technology Co., Ltd.	10
#6	The Maitland Company, LLC	9
#7	Daiki Co., Ltd.	8
#8	Hunan Brunp EV Recycling Co., Ltd.	8
#9	Powerdyne, Inc.	8
#10	CHZ Technologies, LLC	8
#11	LSC Environmental Products, LLC	7
#12	Food Cycle Science Corporation	7
#13	ThermoChem Recovery International, Inc.	6
#14	JX Metals Corporation	6
#15	Q.E.D. Environmental Systems, Inc.	6
#16	Continuus Materials Intellectual Property, LLC	6
#17	Watershed Geosynthetics LLC	6
#18	GreenMantra Recycling Technologies Ltd.	6
#19	AWT IP LLC	6
#20	Grand Abyss, LLC	6

Footprint here vs. claim strategy

Each dot is a leading B09B 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.

Top 14 B09B assignees by class footprint. Bubble size = patents in B09B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B09B's 1,226-grant footprint

Nationwide nearest neighbors for B09B (#432 of 670 by volume ; lead share 3.3%) - not the B09 parent-class siblings above.

Nearest by grant volume

C05G 1,232 B04B 1,233 D06P 1,234 C08C 1,240

Nearest by lead-assignee share

G07C 3.3% H02S 3.3% C25F 3.3% H02M 3.2%

Questions about B09B

Which company holds the most patents in B09B?

Loci Controls, Inc. leads B09B with 40 patents (3.3% of the subclass). By PatentsView assignee type, us corporations account for 55% of class grants.

Which B09B assignees grew fastest recently?

Among assignees with ≥5 grants in B09B, Guangdong Brunp Recycling Technology Co., Ltd. shows the highest company-wide grant multiple (61x: 0 grants in 2019–2021 → 61 in 2022–2024) while holding 10 patents in this subclass. Growth is company-wide, not class-only.

How does B09B compare inside parent class B09?

Inside B09 (Disposal OF Solid WASTE; Reclamation OF Contaminated Soil), B09B ranks #1 of 2 subclasses by grant volume and holds 63.3% of the parent class total. The largest sibling is B09C (712 grants).

What to do with this data

B09B in context - here's where to go next.

Loci Controls, Inc. leads B09B with 40 grants in this class. See full portfolio
B09B ranks #432 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B09, the largest sibling subclass is B09C with 712 grants. Explore B09C

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - B09B figures are USPTO PatentsView granted-utility totals for this subclass (1,226 grants in the tracked window).

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.