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CPC technology class · C08

C08F - Macromolecular Compounds Obtained By Reactions Only Invol…

Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds. 23,159 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

23,159
US patents granted
#4/8
in C08
16.0%
C08 class share
+4%
5-yr velocity

The verdict

According to USPTO PatentsView, Macromolecular Compounds Obtained By Reactions Only Invol… ranks #86 of 670 CPC technology areas - 23,159 US patents granted since 2015, with recorded grant volume up 4% over five years.

#86
of 670 CPC technology areas
23,159
US patents granted, 2015–2025
Lg Chem
leading assignee (1,243)
+4%
grant velocity, last 5 yrs

How C08F's grant cadence moved

Between 2020–2024, C08F recorded 10,177 grants versus 9,752 in 2015–2019 (+4% equal-window velocity). Across complete years, output peaked in 2020 at 2,239 grants and bottomed in 2015 at 1,755 (+28% peak-over-trough). Lead assignee LG Chem, Ltd. holds 5.4% of the class ; the top three share 10.4%.

Leaderboard read

C08F concentration, lead at 5.4%

LG Chem, Ltd. leads this historical grant record at 5.4% of C08F - foreign corporation assignees hold 69% of class grants (12,238 of 17,690). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
5.4%

1,243 of 23,159 grants

Top three share
10.4%

of the class's recorded grants

Lead over #2
604

more grants than DOW Global Technologies LLC

Where C08F sits inside C08

Among 8 subclasses in C08 (Organic Macromolecular COMPOUNDS; Their Preparation OR Chemical WORKING-UP; Compositions Based Thereon), C08F ranks #4 and holds 16.0% of the parent class's 144,472 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

C08L 36,183 C08G 29,133 C08K 28,505 C08J 21,338 C08B 3,742 C08C 1,240 C08H 1,172

Rising assignees active in C08F

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. #1 Resonac Corporation 192x 0 → 192 company-wide · 29 in C08F
  2. #2 Solventum Intellectual Properties Company 88x 0 → 88 company-wide · 11 in C08F
  3. #3 Contemporary Amperex Technology (HONG KONG) Limited 87x 0 → 87 company-wide · 7 in C08F
  4. #4 SK Geo Centric Co., Ltd. 35x 0 → 35 company-wide · 8 in C08F
  5. #5 Kraton Corporation 23x 1 → 23 company-wide · 14 in C08F

C08F grants by year, peak 2020 (2,239)

US utility-patent grants per year in C08F, 2015–2025 - recent five years are up 4% versus 2015–2019.

1,2001,4001,6001,8002,0002,2002,400 20152016201720182019202020212022202320242025 1,405

Who leads C08F?

The 12 most active assignees in Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds - wider bars mean more grants

patents

What this shows Lg Chem is the most active filer in C08F, holding 1,243 of the 23,159 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 C08F
Rank Company Patents in C08F
#1 LG Chem, Ltd. 1,243
#2 DOW Global Technologies LLC 639
#3 ExxonMobil Chemical Patents Inc. 526
#4 Chevron Phillips Chemical Company LP 472
#5 Fujifilm Corporation 471
#6 Basf SE 448
#7 3M Innovative Properties Company 438
#8 Borealis AG 423
#9 Shin-etsu Chemical Co., Ltd. 306
#10 Rohm and Haas Company 286
#11 Zeon Corporation 282
#12 Bridgestone Corporation 244
#13 Kuraray Co., Ltd. 233
#14 Daikin Industries, Ltd. 221
#15 Sumitomo Chemical Company, Limited 184
#16 Sabic Global Technologies B.V. 174
#17 Mitsubishi Chemical Corporation 163
#18 Nova Chemicals (International) S.A. 156
#19 Arkema France 151
#20 Basell Poliolefine Italia S.r.l. 151

Footprint here vs. claim strategy

Each dot is a leading C08F 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 C08F assignees by class footprint. Bubble size = patents in C08F. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 050010001500 Patents in C08F Avg claims / patent (company-wide) Lg ChemDow GlobalExxonmobil Chemical…Chevron Phillips…FujifilmBasf Se3m Innovative…BorealisShin-etsu ChemicalRohm and HaasZeonBridgestoneKurarayDaikin Industries
Top 14 C08F assignees by class footprint. Bubble size = patents in C08F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near C08F's 23,159-grant footprint

Nationwide nearest neighbors for C08F (#86 of 670 by volume ; lead share 5.4%) - not the C08 parent-class siblings above.

Nearest by grant volume

B29L 23,135 B82Y 23,042 H10N 23,338 B29K 22,850

Nearest by lead-assignee share

H01F 5.4% A01P 5.4% C22C 5.3% B61K 5.3%

Questions about C08F

Which company holds the most patents in C08F?
LG Chem, Ltd. leads C08F with 1,243 patents (5.4% of the subclass). By PatentsView assignee type, foreign corporations account for 69% of class grants.
Which C08F assignees grew fastest recently?
Among assignees with ≥5 grants in C08F, Resonac Corporation shows the highest company-wide grant multiple (192x: 0 grants in 2019–2021 → 192 in 2022–2024) while holding 29 patents in this subclass. Growth is company-wide, not class-only.
How does C08F compare inside parent class C08?
Inside C08 (Organic Macromolecular COMPOUNDS; Their Preparation OR Chemical WORKING-UP; Compositions Based Thereon), C08F ranks #4 of 8 subclasses by grant volume and holds 16.0% of the parent class total. The largest sibling is C08L (36,183 grants).

What to do with this data

C08F in context - here's where to go next.

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

Methodology - C08F figures are USPTO PatentsView granted-utility totals for this subclass (23,159 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.