PlainPatent

CPC technology class · C08

C08L - Compositions OF Macromolecular Compounds

Compositions of macromolecular compounds. 36,183 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

36,183
US patents granted
C08
Parent CPC class
20
Active assignees
+23%
5-yr velocity

The verdict

Compositions OF Macromolecular Compounds ranks #46 of 670 CPC technology areas - 36,183 US patents granted since 2015, with filing up 23% over five years.

#46
of 670 CPC technology areas
36,183
US patents granted, 2015–2025
Lg Chem
leading assignee (1,120)
+23%
filing velocity, last 5 yrs
Top assignee: LG CHEM, Ltd. (1,120 patents)

CPC subclass C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS - covers 36,183 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C08 (ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON). See our CPC classification guide for how the system works.

The competitive landscape in C08L is shaped by 20 distinct companies actively filing in this space. LG CHEM, Ltd. leads with 1,120 patents, followed by DOW Global Technologies Llc at 886 grants and BASF SE at 476.

Filing activity in C08L is up 23% 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 C08L innovation accelerating?

US utility-patent grants per year in C08L, 2015–2025 - recent five years are up 23% versus 2015–2019.

2,0002,5003,0003,5004,000 20152016201720182019202020212022202320242025 2,178

Who leads C08L?

The 12 most active assignees in COMPOSITIONS OF MACROMOLECULAR COMPOUNDS - wider bars mean more grants

patents

What this shows Lg Chem is the most active filer in C08L, holding 1,120 of the 36,183 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 C08L
Rank Company Patents in C08L
#1 LG CHEM, Ltd. 1,120
#2 DOW Global Technologies Llc 886
#3 BASF SE 476
#4 3M Innovative Properties Company 475
#5 Shin-etsu Chemical Co., Ltd. 469
#6 Sabic Global Technologies B.v. 431
#7 Borealis Ag 421
#8 Bridgestone Corporation 372
#9 Sumitomo Rubber Industries, Ltd. 350
#10 Exxonmobil Chemical Patents Inc. 311
#11 ZEON Corporation 304
#12 Toray Industries, Inc. 280
#13 Mitsubishi Gas Chemical Company, Inc. 261
#14 Rohm And Haas Company 254
#15 Compagnie Generale DES Etablissements Michelin 243
#16 Sumitomo Chemical Company, Limited 240
#17 Mitsubishi Chemical Corporation 239
#18 Dow Silicones Corporation 226
#19 Arkema France 224
#20 Kuraray Co., Ltd. 218

About This Class

CPC subclass C08L belongs to class C08.

36,183 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 C08L 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 C08L assignees by class footprint. Bubble size = patents in C08L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C08L assignees by class footprint. Bubble size = patents in C08L. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 20040060080010001200 Patents in C08L Avg claims / patent (company-wide) Lg ChemDow GlobalBasf Se3m Innovative Propert…Shin-etsu ChemicalSabic Global B VBorealisBridgestoneSumitomo Rubber Indus…Exxonmobil Chemical P…ZeonToray IndustriesMitsubishi Gas Chemic…Rohm and Haas
Top 14 C08L assignees by class footprint. Bubble size = patents in C08L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C08L?
CPC subclass C08L covers COMPOSITIONS OF MACROMOLECULAR COMPOUNDS. It belongs to CPC class C08 (ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON), with 36,183 US utility patents granted since 2015.
How many patents have been filed in C08L?
36,183 US utility patents were granted in CPC subclass C08L between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C08L?
LG CHEM, Ltd. leads C08L with 1,120 patents, making it the most active assignee in this technology area.
How is patent data for C08L 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., C08) is a broad technology category. Subclasses like C08L 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.