PlainPatent

CPC technology class · C05

C05C - Nitrogenous Fertilisers

Nitrogenous fertilisers. 753 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

753
US patents granted
C05
Parent CPC class
20
Active assignees
+46%
5-yr velocity

The verdict

Nitrogenous Fertilisers ranks #489 of 670 CPC technology areas - 753 US patents granted since 2015, with filing up 46% over five years.

#489
of 670 CPC technology areas
753
US patents granted, 2015–2025
Koch Agronomic Servic…
leading assignee (29)
+46%
filing velocity, last 5 yrs
Top assignee: KOCH Agronomic Services, Llc (29 patents)

CPC subclass C05C - NITROGENOUS FERTILISERS - covers 753 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C05 (FERTILISERS; MANUFACTURE THEREOF). See our CPC classification guide for how the system works.

The competitive landscape in C05C is shaped by 20 distinct companies actively filing in this space. KOCH Agronomic Services, Llc leads with 29 patents, followed by YARA International ASA at 28 grants and Soilgenic Technologies, Llc at 20.

Filing activity in C05C is up 46% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C05C innovation accelerating?

US utility-patent grants per year in C05C, 2015–2025 - recent five years are up 46% versus 2015–2019.

405060708090100 20152016201720182019202020212022202320242025 62

Who leads C05C?

The 12 most active assignees in NITROGENOUS FERTILISERS - wider bars mean more grants

patents

What this shows Koch Agronomic Servic… is the most active filer in C05C, holding 29 of the 753 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass C05C
Rank Company Patents in C05C
#1 KOCH Agronomic Services, Llc 29
#2 YARA International ASA 28
#3 Soilgenic Technologies, Llc 20
#4 Stamicarbon B.v. 19
#5 Verdesian Life Sciences U.s., Llc 16
#6 The Mosaic Company 10
#7 OMS Investments, Inc. 9
#8 Casale Sa 8
#9 Earth Science Laboratories, Inc. 8
#10 Sabic Agri-nutrients Company 8
#11 Carbon Technology Holdings, Llc 7
#12 Cool Planet Energy System, Inc. 7
#13 Pivot Bio, Inc. 7
#14 Thyssenkrupp Fertilizer Technology Gmbh 7
#15 Nuorganics Llc 6
#16 Anuvia Plant Nutrients Corporation 6
#17 North University OF China 5
#18 Alcoa USA Corp. 5
#19 Bayotech, Inc. 5
#20 The Andersons Inc. 5

About This Class

CPC subclass C05C belongs to class C05.

753 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading C05C 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 C05C assignees by class footprint. Bubble size = patents in C05C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C05C assignees by class footprint. Bubble size = patents in C05C. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520253035 5101520253035 Patents in C05C Avg claims / patent (company-wide) Koch Agronomic Servic…Yara International AsaSoilgenicStamicarbon B VVerdesian Life Scienc…The MosaicOms InvestmentsCasaleEarth Science Laborat…Sabic Agri-nutrientsCarbon Technology Hol…Cool Planet Energy Sy…Pivot Biothyssenkrupp Fertiliz…
Top 14 C05C assignees by class footprint. Bubble size = patents in C05C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C05C?
CPC subclass C05C covers NITROGENOUS FERTILISERS. It belongs to CPC class C05 (FERTILISERS; MANUFACTURE THEREOF), with 753 US utility patents granted since 2015.
How many patents have been filed in C05C?
753 US utility patents were granted in CPC subclass C05C between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C05C?
KOCH Agronomic Services, Llc leads C05C with 29 patents, making it the most active assignee in this technology area.
How is patent data for C05C collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., C05) is a broad technology category. Subclasses like C05C provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.