PlainPatent

CPC technology class · B32

B32B - Layered Products

Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form. 39,314 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

39,314
US patents granted
#1/1
in B32
100.0%
B32 class share
+23%
5-yr velocity

The verdict

According to USPTO PatentsView, Layered Products ranks #44 of 670 CPC technology areas - 39,314 US patents granted since 2015, with recorded grant volume up 23% over five years.

#44
of 670 CPC technology areas
39,314
US patents granted, 2015–2025
Samsung
leading assignee (923)
+23%
grant velocity, last 5 yrs

How B32B's grant cadence moved

Between 2020–2024, B32B recorded 19,134 grants versus 15,589 in 2015–2019 (+23% equal-window velocity). Across complete years, output peaked in 2020 at 4,285 grants and bottomed in 2015 at 2,375 (+80% peak-over-trough). Lead assignee The Boeing Company holds 2.1% of the class ; the top three share 5.1%.

Leaderboard read

B32B concentration, lead at 2.1%

The Boeing Company leads this historical grant record at 2.1% of B32B - foreign corporation assignees hold 59% of class grants (15,350 of 26,068). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
2.1%

815 of 39,314 grants

Top three share
5.1%

of the class's recorded grants

Lead over #2
168

more grants than 3M Innovative Properties Company

Rising assignees active in B32B

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 LG Energy Solution, Ltd. 770x 2 → 1,539 company-wide · 28 in B32B
  2. #2 RTX Corporation 662x 0 → 662 company-wide · 36 in B32B
  3. #3 Resonac Corporation 192x 0 → 192 company-wide · 29 in B32B
  4. #4 Proterial, Ltd. 139x 0 → 139 company-wide · 17 in B32B
  5. #5 Solventum Intellectual Properties Company 88x 0 → 88 company-wide · 7 in B32B

B32B grants by year, peak 2020 (4,285)

US utility-patent grants per year in B32B, 2015–2025 - recent five years are up 23% versus 2015–2019.

2,0002,5003,0003,5004,0004,500 20152016201720182019202020212022202320242025 2,574

Who leads B32B?

The 12 most active assignees in Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form - wider bars mean more grants

patents

What this shows Samsung is the most active filer in B32B, holding 923 of the 39,314 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 B32B
Rank Company Patents in B32B
#1 The Boeing Company 815
#2 3M Innovative Properties Company 647
#3 The Procter & Gamble Company 557
#4 Corning Incorporated 470
#5 LG Chem, Ltd. 448
#6 Saint-gobain Glass France 388
#7 Nitto Denko Corporation 359
#8 Fujifilm Corporation 347
#9 DOW Global Technologies LLC 326
#10 Nike, Inc. 309
#11 Dai Nippon Printing Co., Ltd. 305
#12 AGC Inc. 246
#13 Nippon Steel Corporation 244
#14 JFE Steel Corporation 237
#15 Sekisui Chemical Co., Ltd. 231
#16 BOE Technology Group Co., Ltd. 230
#17 Toray Industries, Inc. 228
#18 Toppan Printing Co., Ltd. 176
#19 Mitsubishi Gas Chemical Company, Inc. 167
#20 Posco Co., Ltd 164

Footprint here vs. claim strategy

Each dot is a leading B32B 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 B32B assignees by class footprint. Bubble size = patents in B32B. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 2004006008001000 Patents in B32B Avg claims / patent (company-wide) The Boeing3m Innovative…The Procter & GambleCorning IncorporatedLg ChemSaint-gobain Glass…Nitto DenkoFujifilmDow GlobalNikeDai Nippon PrintingAgcNippon SteelJfe Steel
Top 14 B32B assignees by class footprint. Bubble size = patents in B32B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near B32B's 39,314-grant footprint

Nationwide nearest neighbors for B32B (#44 of 670 by volume ; lead share 2.3%) - not the B32 parent-class siblings above.

Nearest by grant volume

B60W 39,530 E21B 39,943 G05D 37,264 C08L 36,183

Nearest by lead-assignee share

G01D 2.3% G01J 2.4% F28D 2.3% F04B 2.3%

Questions about B32B

Which company holds the most patents in B32B?
Samsung Electronics Co., Ltd. leads B32B with 923 patents (2.1% of the subclass). By PatentsView assignee type, foreign corporations account for 59% of class grants.
Which B32B assignees grew fastest recently?
Among assignees with ≥5 grants in B32B, LG Energy Solution, Ltd. shows the highest company-wide grant multiple (770x: 2 grants in 2019–2021 → 1,539 in 2022–2024) while holding 28 patents in this subclass. Growth is company-wide, not class-only.

What to do with this data

B32B 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 - B32B figures are USPTO PatentsView granted-utility totals for this subclass (39,314 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.