CPC technology class · B44

B44C - Producing Decorative Effects

Producing decorative effects ; mosaics; tarsia work ; paperhanging. 1,788 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,788
US patents granted: #1/4
in B44: 58.1%
B44 class share: +7%
5-yr velocity

The verdict

According to USPTO PatentsView, Producing Decorative Effects ranks #384 of 670 CPC technology areas - 1,788 US patents granted since 2015, with recorded grant volume up 7% over five years.

#384
of 670 CPC technology areas: 1,788
US patents granted, 2015–2025: Flooring Industies Sarl
leading assignee (84): +7%
grant velocity, last 5 yrs

How B44C's grant cadence moved

Between 2020–2024, B44C recorded 845 grants versus 790 in 2015–2019 (+7% equal-window velocity). Across complete years, output peaked in 2021 at 193 grants and bottomed in 2018 at 144 (+34% peak-over-trough). Lead assignee Flooring Industies Limited, Sarl holds 4.7% of the class ; the top three share 8.9%.

Leaderboard read

B44C concentration, lead at 4.7%

Flooring Industies Limited, Sarl leads this historical grant record at 4.7% of B44C - foreign corporation assignees hold 72% of class grants (602 of 835). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.7%
Top three share: 8.9%
Lead over #2: 45

Where B44C sits inside B44

Among 4 subclasses in B44 (Decorative Arts), B44C ranks #1 and holds 58.1% of the parent class's 3,076 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B44F 693 B44D 321 B44B 274

Rising assignees active in B44C

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 VÄLINGE Innovation AB 47x 0 → 47 company-wide · 7 in B44C
#2 Hymmen GmbH Maschinen- und Anlagenbau 7.00x 0 → 7 company-wide · 9 in B44C
#3 Unilin BV 6.11x 9 → 55 company-wide · 39 in B44C
#4 Diamond Art Club, LLC 4.00x 0 → 4 company-wide · 5 in B44C
#5 Levi Strauss & Co. 2.85x 20 → 57 company-wide · 8 in B44C

B44C grants by year, peak 2021 (193)

US utility-patent grants per year in B44C, 2015–2025 - recent five years are up 7% versus 2015–2019.

Flooring Industies…

84
Unilin Bv

39
Flooring

36
Ceraloc Innovation Ab

30
Valinge Innovation Ab

23
Agfa

23
Unilin Bvba

23
Leonhard Kurz…

18
Akzenta Paneele +…

18
Avery Dennison Retail…

15
Xylo

15
Masonite

13

What this shows Flooring Industies… is the most active filer in B44C, holding 84 of the 1,788 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 B44C
Rank	Company	Patents in B44C
#1	Flooring Industies Limited, Sarl	84
#2	Unilin BV	39
#3	Flooring Technologies Ltd.	36
#4	Ceraloc Innovation AB	30
#5	Valinge Innovation AB	23
#6	Agfa NV	23
#7	Unilin Bvba	23
#8	Leonhard Kurz Stiftung & Co. KG	18
#9	Akzenta Paneele + Profile GMBH	18
#10	Avery Dennison Retail Information Services LLC	15
#11	Xylo Technologies AG	15
#12	Masonite Corporation	13
#13	Cambria Company LLC	12
#14	Taica Corporation	12
#15	Crayola LLC	10
#16	THE Hillman Group, Inc.	9
#17	Pergo (EUROPE) AB	9
#18	Wilsonart LLC	9
#19	Surface Technologies GMBH & Co. KG	9
#20	Hymmen GmbH Maschinen- und Anlagenbau	9

Footprint here vs. claim strategy

Each dot is a leading B44C 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 B44C assignees by class footprint. Bubble size = patents in B44C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B44C's 1,788-grant footprint

Nationwide nearest neighbors for B44C (#384 of 670 by volume ; lead share 4.7%) - not the B44 parent-class siblings above.

Nearest by grant volume

A01F 1,791 A43C 1,793 A24B 1,799 B60D 1,802

Nearest by lead-assignee share

B66F 4.7% F17D 4.7% B41M 4.7% B25B 4.7%

Questions about B44C

Which company holds the most patents in B44C?

Flooring Industies Limited, Sarl leads B44C with 84 patents (4.7% of the subclass). By PatentsView assignee type, foreign corporations account for 72% of class grants.

Which B44C assignees grew fastest recently?

Among assignees with ≥5 grants in B44C, VÄLINGE Innovation AB shows the highest company-wide grant multiple (47x: 0 grants in 2019–2021 → 47 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.

How does B44C compare inside parent class B44?

Inside B44 (Decorative Arts), B44C ranks #1 of 4 subclasses by grant volume and holds 58.1% of the parent class total. The largest sibling is B44F (693 grants).

What to do with this data

B44C in context - here's where to go next.

Flooring Industies Limited, Sarl leads B44C with 84 grants in this class. See full portfolio
B44C ranks #384 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class B44, the largest sibling subclass is B44F with 693 grants. Explore B44F

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

Methodology - B44C figures are USPTO PatentsView granted-utility totals for this subclass (1,788 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.