CPC technology class · C05

C05F - Organic Fertilisers Not Covered By Subclasses C05b

Organic fertilisers not covered by subclasses c05b, c05c, e.g. fertilisers from waste or refuse. 1,129 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,129
US patents granted: #2/5
in C05: 26.0%
C05 class share: +26%
5-yr velocity

The verdict

According to USPTO PatentsView, Organic Fertilisers Not Covered By Subclasses C05b ranks #439 of 670 CPC technology areas - 1,129 US patents granted since 2015, with recorded grant volume up 26% over five years.

#439
of 670 CPC technology areas: 1,129
US patents granted, 2015–2025: Cool Planet Energy System
leading assignee (28): +26%
grant velocity, last 5 yrs

How C05F's grant cadence moved

Between 2020–2024, C05F recorded 546 grants versus 433 in 2015–2019 (+26% equal-window velocity). Across complete years, output peaked in 2020 at 121 grants and bottomed in 2017 at 70 (+73% peak-over-trough). Lead assignee Cool Planet Energy System, Inc. holds 2.5% of the class ; the top three share 5.3%.

Leaderboard read

C05F concentration, lead at 2.5%

Cool Planet Energy System, Inc. leads this historical grant record at 2.5% of C05F - us corporation assignees hold 66% of class grants (263 of 401). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 2.5%
Top three share: 5.3%
Lead over #2: 12

Where C05F sits inside C05

Among 5 subclasses in C05 (FERTILISERS; Manufacture Thereof), C05F ranks #2 and holds 26.0% of the parent class's 4,334 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

C05G 1,232 C05C 753 C05D 707 C05B 513

Rising assignees active in C05F

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 Soilgenic Technologies, LLC 14x 0 → 14 company-wide · 13 in C05F
#2 Food Cycle Science Corporation 6.00x 1 → 6 company-wide · 8 in C05F
#3 Tenfold Technologies, LLC 3.00x 0 → 3 company-wide · 8 in C05F
#4 Innovations FOR World Nutrition, LLC 2.50x 2 → 5 company-wide · 7 in C05F
#5 Carbon Technology Holdings, LLC 2.33x 12 → 28 company-wide · 16 in C05F

C05F grants by year, peak 2020 (121)

US utility-patent grants per year in C05F, 2015–2025 - recent five years are up 26% versus 2015–2019.

Cool Planet Energy…

28
Carbon Technology…

16
Novozymes Bioag A/S

16
Soilgenic

13
Novozymes Biologicals

10
Pivot Bio

9
Anaergia

8
Profile Products L L C

8
Tenfold

8
Envirokure

8
Food Cycle Science

8
Amvac Chemical

7

What this shows Cool Planet Energy… is the most active filer in C05F, holding 28 of the 1,129 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 C05F
Rank	Company	Patents in C05F
#1	Cool Planet Energy System, Inc.	28
#2	Carbon Technology Holdings, LLC	16
#3	Novozymes Bioag A/S	16
#4	Soilgenic Technologies, LLC	13
#5	Novozymes Biologicals Limited	10
#6	Pivot Bio, Inc.	9
#7	Anaergia Inc.	8
#8	Profile Products L.L.C.	8
#9	Tenfold Technologies, LLC	8
#10	Envirokure Inc.	8
#11	Food Cycle Science Corporation	8
#12	Amvac Chemical Corporation	7
#13	Innovations FOR World Nutrition, LLC	7
#14	Heliae Development, LLC	6
#15	Dari-tech, Inc.	6
#16	The Andersons Inc.	6
#17	LSC Environmental Products, LLC	6
#18	Anuvia Plant Nutrients Corporation	6
#19	Nachurs Alpine Solutions, Corp.	6
#20	Talipot Cool Extract (IP), LLC	6

Footprint here vs. claim strategy

Each dot is a leading C05F 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 C05F assignees by class footprint. Bubble size = patents in C05F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near C05F's 1,129-grant footprint

Nationwide nearest neighbors for C05F (#439 of 670 by volume ; lead share 2.5%) - not the C05 parent-class siblings above.

Nearest by grant volume

E21C 1,136 C11C 1,114 B25D 1,146 B25C 1,109

Nearest by lead-assignee share

C12P 2.5% G16Z 2.5% H05B 2.5% D06N 2.5%

Questions about C05F

Which company holds the most patents in C05F?

Cool Planet Energy System, Inc. leads C05F with 28 patents (2.5% of the subclass). By PatentsView assignee type, us corporations account for 66% of class grants.

Which C05F assignees grew fastest recently?

Among assignees with ≥5 grants in C05F, Soilgenic Technologies, LLC shows the highest company-wide grant multiple (14x: 0 grants in 2019–2021 → 14 in 2022–2024) while holding 13 patents in this subclass. Growth is company-wide, not class-only.

How does C05F compare inside parent class C05?

Inside C05 (FERTILISERS; Manufacture Thereof), C05F ranks #2 of 5 subclasses by grant volume and holds 26.0% of the parent class total. The largest sibling is C05G (1,232 grants).

What to do with this data

C05F in context - here's where to go next.

Cool Planet Energy System, Inc. leads C05F with 28 grants in this class. See full portfolio
C05F ranks #439 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class C05, the largest sibling subclass is C05G with 1,232 grants. Explore C05G

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

Methodology - C05F figures are USPTO PatentsView granted-utility totals for this subclass (1,129 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.