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 filing trajectory.

39,314
US patents granted
B32
Parent CPC class
20
Active assignees
+39%
5-yr velocity

The verdict

Layered Products ranks #44 of 670 CPC technology areas - 39,314 US patents granted since 2015, with filing up 39% over five years.

#44
of 670 CPC technology areas
39,314
US patents granted, 2015–2025
Samsung
leading assignee (923)
+39%
filing velocity, last 5 yrs
Top assignee: Samsung Electronics Co., Ltd. (923 patents)

CPC subclass B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - covers 39,314 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B32 (LAYERED PRODUCTS). See our CPC classification guide for how the system works.

The competitive landscape in B32B is shaped by 20 distinct companies actively filing in this space. Samsung Electronics Co., Ltd. leads with 923 patents, followed by 3M Innovative Properties Company at 647 grants and The Procter & Gamble Company at 557.

Filing activity in B32B is up 39% 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 B32B innovation accelerating?

US utility-patent grants per year in B32B, 2015–2025 - recent five years are up 39% 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

About This Class

CPC subclass B32B belongs to class B32.

39,314 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 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).

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 Propert…The Procter & GambleCorning IncorporatedLg ChemSaint-gobain Glass Fr…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).

Frequently Asked Questions

What is CPC class B32B?
CPC subclass B32B covers LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM. It belongs to CPC class B32 (LAYERED PRODUCTS), with 39,314 US utility patents granted since 2015.
How many patents have been filed in B32B?
39,314 US utility patents were granted in CPC subclass B32B between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B32B?
Samsung Electronics Co., Ltd. leads B32B with 923 patents, making it the most active assignee in this technology area.
How is patent data for B32B 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., B32) is a broad technology category. Subclasses like B32B 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.