CPC technology class · B09
B09C - Reclamation Of Contaminated Soil
Reclamation of contaminated soil. 712 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.
- 712
- US patents granted
- #2/2
- in B09
- 36.7%
- B09 class share
- +0%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Reclamation Of Contaminated Soil ranks #498 of 670 CPC technology areas - 712 US patents granted since 2015, with recorded grant volume up 0% over five years.
- #498
- of 670 CPC technology areas
- 712
- US patents granted, 2015–2025
- Chevron U
- leading assignee (12)
- +0%
- grant velocity, last 5 yrs
How B09C's grant cadence moved
Between 2020–2024, B09C recorded 317 grants versus 317 in 2015–2019 (+0% equal-window velocity). Across complete years, output peaked in 2019 at 76 grants and bottomed in 2016 at 46 (+65% peak-over-trough). Lead assignee Oxytec LLC holds 1.7% of the class ; the top three share 4.6%.
Leaderboard read
B09C concentration, lead at 1.7%
Oxytec LLC leads this historical grant record at 1.7% of B09C - us corporation assignees hold 61% of class grants (160 of 263). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 1.7%
- Top three share
- 4.6%
- Lead over #2
- 1
12 of 712 grants
of the class's recorded grants
more grants than Remediation Products, Inc.
Where B09C sits inside B09
Among 2 subclasses in B09 (Disposal OF Solid WASTE; Reclamation OF Contaminated Soil), B09C ranks #2 and holds 36.7% 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.
Rising assignees active in B09C
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 HMR Solutions Inc. 4.00x 1 → 4 company-wide · 5 in B09C
- #2 Tersus Environmental LLC 3.00x 1 → 3 company-wide · 6 in B09C
- #3 Regenesis Bioremediation Products 2.00x 2 → 4 company-wide · 7 in B09C
- #4 Loci Controls, Inc. 1.69x 16 → 27 company-wide · 10 in B09C
- #5 Chinese Research Academy OF Environmental Sciences 1.29x 17 → 22 company-wide · 9 in B09C
B09C grants by year, peak 2019 (76)
US utility-patent grants per year in B09C, 2015–2025 - recent five years are up 0% versus 2015–2019.
Who leads B09C?
The 12 most active assignees in Reclamation OF Contaminated Soil - wider bars mean more grants
- Oxytec
Oxytec LLC
12 patents
- Remediation Products
Remediation Products, Inc.
11 patents
- Loci Controls
Loci Controls, Inc.
10 patents
- Specialty Earth…
Specialty Earth Sciences, LLC
10 patents
- Chinese Research…
Chinese Research Academy OF Environmental Sciences
9 patents
- Geosyntec Consultants
Geosyntec Consultants, Inc.
7 patents
- Regenesis Bioremediati…
Regenesis Bioremediation Products
7 patents
- Tersus Environmental
Tersus Environmental LLC
6 patents
- China University Of…
China University OF Petroleum (EAST CHINA)
5 patents
- University of…
University of Saskatchewan
5 patents
- Harsco
Harsco Corporation
5 patents
- Lsc Environmental…
LSC Environmental Products, LLC
5 patents
What this shows Chevron U is the most active filer in B09C, holding 12 of the 712 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 B09C |
|---|---|---|
| #1 | Oxytec LLC | 12 |
| #2 | Remediation Products, Inc. | 11 |
| #3 | Loci Controls, Inc. | 10 |
| #4 | Specialty Earth Sciences, LLC | 10 |
| #5 | Chinese Research Academy OF Environmental Sciences | 9 |
| #6 | Geosyntec Consultants, Inc. | 7 |
| #7 | Regenesis Bioremediation Products | 7 |
| #8 | Tersus Environmental LLC | 6 |
| #9 | China University OF Petroleum (EAST CHINA) | 5 |
| #10 | University of Saskatchewan | 5 |
| #11 | Harsco Corporation | 5 |
| #12 | LSC Environmental Products, LLC | 5 |
| #13 | TRS Holdings LLC | 5 |
| #14 | GreenStract, LLC | 5 |
| #15 | HMR Solutions Inc. | 5 |
| #16 | Innovative Environmental Technologies, Inc. | 5 |
| #17 | JRW Bioremediation, LLC | 5 |
| #18 | North China Electrical Power University | 4 |
| #19 | Nanjing Tech University | 4 |
| #20 | Clean Chemistry, Inc. | 4 |
Footprint here vs. claim strategy
Each dot is a leading B09C 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 B09C's 712-grant footprint
Nationwide nearest neighbors for B09C (#498 of 670 by volume ; lead share 1.7%) - not the B09 parent-class siblings above.
Questions about B09C
Which company holds the most patents in B09C?
Which B09C assignees grew fastest recently?
How does B09C compare inside parent class B09?
What to do with this data
B09C in context - here's where to go next.
- Oxytec LLC leads B09C with 12 grants in this class. See full portfolio
- B09C ranks #498 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class B09, the largest sibling subclass is B09B with 1,226 grants. Explore B09B
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Methodology - B09C figures are USPTO PatentsView granted-utility totals for this subclass (712 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.