PlainPatent

CPC technology class · H03

H03D - Demodulation OR Transference OF Modulation FROM ONE Carri…

Demodulation or transference of modulation from one carrier to another. 1,165 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,165
US patents granted
H03
Parent CPC class
20
Active assignees
-23%
5-yr velocity

The verdict

Demodulation OR Transference OF Modulation FROM ONE Carri… ranks #436 of 670 CPC technology areas - 1,165 US patents granted since 2015, with filing down 23% over five years.

#436
of 670 CPC technology areas
1,165
US patents granted, 2015–2025
Qualcomm Incorporated
leading assignee (65)
-23%
filing velocity, last 5 yrs
Top assignee: Qualcomm Incorporated (65 patents)

CPC subclass H03D - DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER - covers 1,165 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 H03D is shaped by 20 distinct companies actively filing in this space. Qualcomm Incorporated leads with 65 patents, followed by Richwave Technology Corp. at 10 grants and Parkervision, Inc. at 9.

Filing activity in H03D is down 23% over the past five years versus 2015-2019, a notable slowdown that may signal a maturing field. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is H03D innovation accelerating?

US utility-patent grants per year in H03D, 2015–2025 - recent five years are down 23% versus 2015–2019.

050100150200 20152016201720182019202020212022202320242025 51

Who leads H03D?

The 12 most active assignees in DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER - wider bars mean more grants

patents

What this shows Qualcomm Incorporated is the most active filer in H03D, holding 65 of the 1,165 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 H03D
Rank Company Patents in H03D
#1 National Chi Nan University 11
#2 Richwave Technology Corp. 10
#3 Parkervision, Inc. 9
#4 Movano Inc. 8
#5 Dockon Ag 8
#6 Keysight Technologies, Inc. 7
#7 Peregrine Semiconductor Corporation 7
#8 Innophase, Inc. 7
#9 Tensorcom, Inc. 7
#10 Linear Technology Holding Llc 6
#11 Hangzhou Geo-chip Technology Co., Ltd 6
#12 U-blox Ag 5
#13 Dynaspot Corp. 5
#14 Intel Mobile Communications Gmbh 4
#15 Aviat U.s., Inc. 4
#16 GE Hybrid Technologies, Llc 4
#17 Anritsu Company 3
#18 University Of Macau 3
#19 Decawave Ltd. 3
#20 Keyssa Systems, Inc. 3

About This Class

CPC subclass H03D belongs to class H03.

1,165 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 H03D 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 H03D assignees by class footprint. Bubble size = patents in H03D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 H03D assignees by class footprint. Bubble size = patents in H03D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 51015202530 24681012 Patents in H03D Avg claims / patent (company-wide) National Chi Nan Univ…Richwave TechnologyParkervisionMovanoDockonKeysightPeregrine Semiconduct…InnophaseTensorcomLinear Technology Hol…Hangzhou Geo-chip Tec…u-bloxDynaspotIntel Mobile Communic…
Top 14 H03D assignees by class footprint. Bubble size = patents in H03D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class H03D?
CPC subclass H03D covers DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER. It belongs to CPC class H03 (ELECTRONIC CIRCUITRY), with 1,165 US utility patents granted since 2015.
How many patents have been filed in H03D?
1,165 US utility patents were granted in CPC subclass H03D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H03D?
Qualcomm Incorporated leads H03D with 65 patents, making it the most active assignee in this technology area.
How is patent data for H03D 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 H03D 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.