PlainPatent

CPC technology class · C07

C07D - Heterocyclic Compounds

Heterocyclic compounds. 54,914 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

54,914
US patents granted
C07
Parent CPC class
20
Active assignees
-14%
5-yr velocity

The verdict

Heterocyclic Compounds ranks #27 of 670 CPC technology areas - 54,914 US patents granted since 2015, with filing down 14% over five years.

#27
of 670 CPC technology areas
54,914
US patents granted, 2015–2025
Samsung
leading assignee (847)
-14%
filing velocity, last 5 yrs
Top assignee: Samsung Electronics Co., Ltd. (847 patents)

CPC subclass C07D - HETEROCYCLIC COMPOUNDS - covers 54,914 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C07 (ORGANIC CHEMISTRY). See our CPC classification guide for how the system works.

The competitive landscape in C07D is shaped by 20 distinct companies actively filing in this space. Samsung Electronics Co., Ltd. leads with 847 patents, followed by Bristol-myers Squibb Company at 662 grants and Merck Patent Gmbh at 587.

Filing activity in C07D is down 14% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C07D innovation accelerating?

US utility-patent grants per year in C07D, 2015–2025 - recent five years are down 14% versus 2015–2019.

2,0003,0004,0005,0006,000 20152016201720182019202020212022202320242025 2,779

Who leads C07D?

The 12 most active assignees in HETEROCYCLIC COMPOUNDS - wider bars mean more grants

patents

What this shows Samsung is the most active filer in C07D, holding 847 of the 54,914 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 C07D
Rank Company Patents in C07D
#1 Merck Sharp & Dohme Llc 805
#2 Bristol-myers Squibb Company 662
#3 Merck Patent Gmbh 587
#4 Incyte Corporation 566
#5 Novartis Ag 544
#6 BASF SE 526
#7 Janssen Pharmaceuticals, Inc. 492
#8 Hoffmann-la Roche Inc. 455
#9 The Regents Of The University Of California 426
#10 KING Faisal University 413
#11 Gilead Sciences, Inc. 413
#12 LG CHEM, Ltd. 381
#13 Takeda Pharmaceutical Company Limited 364
#14 Boehringer Ingelheim International Gmbh 359
#15 Genentech, Inc. 334
#16 Pfizer Inc. 325
#17 Abb Vie Inc. 284
#18 Sumitomo Chemical Company, Limited 272
#19 Idemitsu Kosan Co., Ltd. 269
#20 Centre National DE LA Recherche Scientifique 268

About This Class

CPC subclass C07D belongs to class C07.

54,914 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 C07D 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 C07D assignees by class footprint. Bubble size = patents in C07D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C07D assignees by class footprint. Bubble size = patents in C07D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 1015202530 300400500600700800900 Patents in C07D Avg claims / patent (company-wide) Merck Sharp & DohmeBristol-myers SquibbMerck PatentIncyteNovartisBasf SeJanssen Pharmaceutica…Hoffmann-la RocheThe Regents of the Un…King Faisal UniversityGilead SciencesLg ChemTakeda PharmaceuticalBoehringer Ingelheim…
Top 14 C07D assignees by class footprint. Bubble size = patents in C07D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C07D?
CPC subclass C07D covers HETEROCYCLIC COMPOUNDS. It belongs to CPC class C07 (ORGANIC CHEMISTRY), with 54,914 US utility patents granted since 2015.
How many patents have been filed in C07D?
54,914 US utility patents were granted in CPC subclass C07D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C07D?
Samsung Electronics Co., Ltd. leads C07D with 847 patents, making it the most active assignee in this technology area.
How is patent data for C07D 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., C07) is a broad technology category. Subclasses like C07D 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.