PlainPatent

CPC technology class · H05

H05K - Printed Circuits

Printed circuits; casings or constructional details of electric apparatus; manufacture of assemblages of electrical components. 62,449 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

62,449
US patents granted
H05
Parent CPC class
20
Active assignees
+18%
5-yr velocity

The verdict

Printed Circuits ranks #24 of 670 CPC technology areas - 62,449 US patents granted since 2015, with filing up 18% over five years.

#24
of 670 CPC technology areas
62,449
US patents granted, 2015–2025
Samsung
leading assignee (3,596)
+18%
filing velocity, last 5 yrs
Top assignee: Samsung Electronics Co., Ltd. (3,596 patents)

CPC subclass H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - covers 62,449 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class H05 (ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR). See our CPC classification guide for how the system works.

The competitive landscape in H05K is shaped by 20 distinct companies actively filing in this space. Samsung Electronics Co., Ltd. leads with 3,596 patents, followed by International Business Machines Corporation at 1,469 grants and Murata Manufacturing Co., Ltd. at 1,201.

Filing activity in H05K is up 18% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is H05K innovation accelerating?

US utility-patent grants per year in H05K, 2015–2025 - recent five years are up 18% versus 2015–2019.

4,0004,5005,0005,5006,0006,500 20152016201720182019202020212022202320242025 4,266

Who leads H05K?

The 12 most active assignees in PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - wider bars mean more grants

patents

What this shows Samsung is the most active filer in H05K, holding 3,596 of the 62,449 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 H05K
Rank Company Patents in H05K
#1 Samsung Electronics Co., Ltd. 3,596
#2 International Business Machines Corporation 1,469
#3 Murata Manufacturing Co., Ltd. 1,201
#4 Intel Corporation 1,132
#5 Apple Inc. 1,082
#6 Dell Products L.p. 1,004
#7 Panasonic Intellectual Property Management Co., Ltd. 712
#8 FUJI Corporation 662
#9 BOE Technology Group Co., Ltd. 653
#10 Mitsubishi Electric Corporation 514
#11 Fujitsu Limited 423
#12 LG Innotek Co., Ltd. 399
#13 Hewlett Packard Enterprise Development Lp 381
#14 Microsoft Technology Licensing, Llc 379
#15 LG Display Co., Ltd. 377
#16 Quanta Computer Inc. 359
#17 Amazon Technologies, Inc. 358
#18 Sumitomo Electric Industries, Ltd. 347
#19 Sumitomo Wiring Systems, Ltd. 341
#20 Wistron Corporation 336

About This Class

CPC subclass H05K belongs to class H05.

62,449 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 H05K 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 H05K assignees by class footprint. Bubble size = patents in H05K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 H05K assignees by class footprint. Bubble size = patents in H05K. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 01000200030004000 Patents in H05K Avg claims / patent (company-wide) SamsungInternational Busines…Murata ManufacturingIntelAppleDell ProductsPanasonic Intellectua…FujiBoe Technology GroupMitsubishi ElectricFujitsuLg InnotekHewlett Packard Enter…Microsoft Technology…
Top 14 H05K assignees by class footprint. Bubble size = patents in H05K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class H05K?
CPC subclass H05K covers PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS. It belongs to CPC class H05 (ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR), with 62,449 US utility patents granted since 2015.
How many patents have been filed in H05K?
62,449 US utility patents were granted in CPC subclass H05K between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H05K?
Samsung Electronics Co., Ltd. leads H05K with 3,596 patents, making it the most active assignee in this technology area.
How is patent data for H05K 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., H05) is a broad technology category. Subclasses like H05K 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.