PlainPatent

CPC technology class · H03

H03K - Pulse Technique

Pulse technique. 30,872 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

30,872
US patents granted
H03
Parent CPC class
20
Active assignees
+12%
5-yr velocity

The verdict

Pulse Technique ranks #62 of 670 CPC technology areas - 30,872 US patents granted since 2015, with filing up 12% over five years.

#62
of 670 CPC technology areas
30,872
US patents granted, 2015–2025
Texas Instruments Inc…
leading assignee (1,140)
+12%
filing velocity, last 5 yrs
Top assignee: Texas Instruments Incorporated (1,140 patents)

CPC subclass H03K - PULSE TECHNIQUE - covers 30,872 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class H03 (ELECTRONIC CIRCUITRY). See our CPC classification guide for how the system works.

The competitive landscape in H03K is shaped by 20 distinct companies actively filing in this space. Texas Instruments Incorporated leads with 1,140 patents, followed by Taiwan Semiconductor Manufacturing Company Ltd. at 762 grants and SK Hynix Inc. at 699.

Filing activity in H03K is up 12% 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 H03K innovation accelerating?

US utility-patent grants per year in H03K, 2015–2025 - recent five years are up 12% versus 2015–2019.

1,5002,0002,5003,0003,5004,000 20152016201720182019202020212022202320242025 1,805

Who leads H03K?

The 12 most active assignees in PULSE TECHNIQUE - wider bars mean more grants

patents

What this shows Texas Instruments Inc… is the most active filer in H03K, holding 1,140 of the 30,872 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 H03K
Rank Company Patents in H03K
#1 Texas Instruments Incorporated 1,140
#2 Taiwan Semiconductor Manufacturing Company Ltd. 762
#3 SK Hynix Inc. 699
#4 Qualcomm Incorporated 614
#5 Intel Corporation 607
#6 Micron Technology, Inc. 537
#7 Infineon Technologies Ag 419
#8 Semiconductor Energy Laboratory Co., Ltd. 389
#9 Kabushiki Kaisha Toshiba 372
#10 Renesas Electronics Corporation 339
#11 Altera Corporation 323
#12 Xilinx, Inc. 318
#13 Stmicroelectronics Sa 309
#14 FUJI Electric Co., Ltd. 303
#15 NXP USA, Inc. 293
#16 Rohm Co., Ltd. 291
#17 NXP B.v. 277
#18 Realtek Semiconductor Corp. 239
#19 Infineon Technologies Austria Ag 225
#20 Skyworks Solutions, Inc. 183

About This Class

CPC subclass H03K belongs to class H03.

30,872 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 H03K 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 H03K assignees by class footprint. Bubble size = patents in H03K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 H03K assignees by class footprint. Bubble size = patents in H03K. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 1015202530 20040060080010001200 Patents in H03K Avg claims / patent (company-wide) Texas Instruments Inc…Taiwan Semiconductor…Sk hynixQualcomm IncorporatedIntelMicron TechnologyInfineonSemiconductor Energy…ToshibaRenesasAlteraXilinxStmicroelectronicsFuji Electric
Top 14 H03K assignees by class footprint. Bubble size = patents in H03K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class H03K?
CPC subclass H03K covers PULSE TECHNIQUE. It belongs to CPC class H03 (ELECTRONIC CIRCUITRY), with 30,872 US utility patents granted since 2015.
How many patents have been filed in H03K?
30,872 US utility patents were granted in CPC subclass H03K between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H03K?
Texas Instruments Incorporated leads H03K with 1,140 patents, making it the most active assignee in this technology area.
How is patent data for H03K 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., H03) is a broad technology category. Subclasses like H03K 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.