CPC technology class · C08

C08H - Derivatives Of Natural Macromolecular Compounds

Derivatives of natural macromolecular compounds. 1,172 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,172
US patents granted: #8/8
in C08: 0.8%
C08 class share: -21%
5-yr velocity

The verdict

According to USPTO PatentsView, Derivatives Of Natural Macromolecular Compounds ranks #435 of 670 CPC technology areas - 1,172 US patents granted since 2015, with recorded grant volume down 21% over five years.

#435
of 670 CPC technology areas: 1,172
US patents granted, 2015–2025: Xyleco
leading assignee (53): -21%
grant velocity, last 5 yrs

How C08H's grant cadence moved

Between 2020–2024, C08H recorded 440 grants versus 556 in 2015–2019 (-21% equal-window velocity). Across complete years, output peaked in 2016 at 134 grants and bottomed in 2022 at 75 (+79% peak-over-trough). Lead assignee Xyleco, Inc. holds 4.5% of the class ; the top three share 9.4%.

Leaderboard read

C08H concentration, lead at 4.5%

Xyleco, Inc. leads this historical grant record at 4.5% of C08H - foreign corporation assignees hold 53% of class grants (276 of 522). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.5%
Top three share: 9.4%
Lead over #2: 23

Where C08H sits inside C08

Among 8 subclasses in C08 (Organic Macromolecular COMPOUNDS; Their Preparation OR Chemical WORKING-UP; Compositions Based Thereon), C08H ranks #8 and holds 0.8% 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 C08F 23,159 C08J 21,338 C08B 3,742 C08C 1,240

Rising assignees active in C08H

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 Rockwool A/S 21x 0 → 21 company-wide · 5 in C08H
#2 Sixring Inc. 14x 0 → 14 company-wide · 7 in C08H
#3 Cambridge Glycoscience Ltd 6.00x 1 → 6 company-wide · 6 in C08H
#4 Compagnie Industrielle de la Matiere Vegetale—CIMV 3.00x 1 → 3 company-wide · 6 in C08H
#5 FPInnovations 2.00x 4 → 8 company-wide · 7 in C08H

C08H grants by year, peak 2016 (134)

US utility-patent grants per year in C08H, 2015–2025 - recent five years are down 21% versus 2015–2019.

Xyleco

53
Upm-kymmene

30
Shell Oil Compny

27
Granbio Intellectual…

18
Stora Enso Oyj

17
Virdia

15
Renmatix

15
Nippon Paper…

14
Api Intellectual…

13
Knauf Insulation Sprl

10
Modern Meadow

10
Tricoya

9

What this shows Xyleco is the most active filer in C08H, holding 53 of the 1,172 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 C08H
Rank	Company	Patents in C08H
#1	Xyleco, Inc.	53
#2	Upm-kymmene Corporation	30
#3	Shell OIL Compny	27
#4	Granbio Intellectual Property Holdings, LLC	18
#5	Stora Enso OYJ	17
#6	Virdia, LLC	15
#7	Renmatix, Inc.	15
#8	Nippon Paper Industries Co., Ltd.	14
#9	API Intellectual Property Holdings, LLC	13
#10	Knauf Insulation Sprl	10
#11	Modern Meadow, Inc.	10
#12	Tricoya Technologies Ltd	9
#13	Fibria Innovations Inc.	9
#14	Knauf Insulation, Inc.	8
#15	Biochemtex S.p.A.	8
#16	Virent, Inc.	7
#17	FPInnovations	7
#18	Sixring Inc.	7
#19	Evertree	7
#20	CelluComp Limited	7

Footprint here vs. claim strategy

Each dot is a leading C08H 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 C08H assignees by class footprint. Bubble size = patents in C08H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near C08H's 1,172-grant footprint

Nationwide nearest neighbors for C08H (#435 of 670 by volume ; lead share 4.5%) - not the C08 parent-class siblings above.

Nearest by grant volume

A63G 1,179 H03D 1,165 B63G 1,181 B25D 1,146

Nearest by lead-assignee share

G08G 4.5% H03L 4.5% G09B 4.6% H04K 4.6%

Questions about C08H

Which company holds the most patents in C08H?

Xyleco, Inc. leads C08H with 53 patents (4.5% of the subclass). By PatentsView assignee type, foreign corporations account for 53% of class grants.

Which C08H assignees grew fastest recently?

Among assignees with ≥5 grants in C08H, Rockwool A/S shows the highest company-wide grant multiple (21x: 0 grants in 2019–2021 → 21 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does C08H compare inside parent class C08?

Inside C08 (Organic Macromolecular COMPOUNDS; Their Preparation OR Chemical WORKING-UP; Compositions Based Thereon), C08H ranks #8 of 8 subclasses by grant volume and holds 0.8% of the parent class total. The largest sibling is C08L (36,183 grants).

What to do with this data

C08H in context - here's where to go next.

Xyleco, Inc. leads C08H with 53 grants in this class. See full portfolio
C08H ranks #435 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class C08, the largest sibling subclass is C08L with 36,183 grants. Explore C08L

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

Methodology - C08H figures are USPTO PatentsView granted-utility totals for this subclass (1,172 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.