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 grant trajectory.

Compiled by PlainPatent · May 15, 2026

1,165
US patents granted: #8/10
in H03: 1.2%
H03 class share: -31%
5-yr velocity

The verdict

According to USPTO PatentsView, Demodulation Or Transference Of Modulation From One Carri… ranks #436 of 670 CPC technology areas - 1,165 US patents granted since 2015, with recorded grant volume down 31% over five years.

#436
of 670 CPC technology areas: 1,165
US patents granted, 2015–2025: Qualcomm Incorporated
leading assignee (65): -31%
grant velocity, last 5 yrs

How H03D's grant cadence moved

Between 2020–2024, H03D recorded 443 grants versus 642 in 2015–2019 (-31% equal-window velocity). Across complete years, output peaked in 2016 at 158 grants and bottomed in 2023 at 66 (+139% peak-over-trough). Lead assignee National Chi Nan University holds 0.9% of the class ; the top three share 2.6%.

Leaderboard read

H03D concentration, lead at 0.9%

National Chi Nan University leads this historical grant record at 0.9% of H03D - us corporation assignees hold 51% of class grants (110 of 214). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 0.9%
Top three share: 2.6%
Lead over #2: 1

Where H03D sits inside H03

Among 10 subclasses in H03 (Electronic Circuitry), H03D ranks #8 and holds 1.2% of the parent class's 95,387 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

H03K 30,872 H03M 21,338 H03F 14,014 H03H 11,825 H03L 6,701 H03G 5,213 H03B 3,110 H03J 659

Rising assignees active in H03D

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 Hangzhou Geo-Chip Technology Co., Ltd 7.00x 2 → 14 company-wide · 6 in H03D
#2 Movano Inc. 4.83x 6 → 29 company-wide · 8 in H03D
#3 RichWave Technology Corp. 1.03x 73 → 75 company-wide · 10 in H03D
#4 Dynaspot Corp. 1.00x 2 → 2 company-wide · 5 in H03D
#5 u-blox AG 1.00x 31 → 31 company-wide · 5 in H03D

H03D grants by year, peak 2016 (158)

US utility-patent grants per year in H03D, 2015–2025 - recent five years are down 31% versus 2015–2019.

National Chi Nan…

11
Richwave Technology

10
Parkervision

9
Movano

8
Dockon

8
Keysight

7
Peregrine Semiconducto…

7
Innophase

7
Tensorcom

7
Linear Technology…

6
Hangzhou Geo-chip…

6
u-blox

5

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.

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

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).

Classes near H03D's 1,165-grant footprint

Nationwide nearest neighbors for H03D (#436 of 670 by volume ; lead share 5.6%) - not the H03 parent-class siblings above.

Nearest by grant volume

C08H 1,172 A63G 1,179 B63G 1,181 B25D 1,146

Nearest by lead-assignee share

C10B 5.6% H03G 5.6% C11B 5.6% H03M 5.5%

Questions about H03D

Which company holds the most patents in H03D?

Qualcomm Incorporated leads H03D with 65 patents (0.9% of the subclass). By PatentsView assignee type, us corporations account for 51% of class grants.

Which H03D assignees grew fastest recently?

Among assignees with ≥5 grants in H03D, Hangzhou Geo-Chip Technology Co., Ltd shows the highest company-wide grant multiple (7.00x: 2 grants in 2019–2021 → 14 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.

How does H03D compare inside parent class H03?

Inside H03 (Electronic Circuitry), H03D ranks #8 of 10 subclasses by grant volume and holds 1.2% of the parent class total. The largest sibling is H03K (30,872 grants).

What to do with this data

H03D in context - here's where to go next.

National Chi Nan University leads H03D with 11 grants in this class. See full portfolio
H03D ranks #436 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class H03, the largest sibling subclass is H03K with 30,872 grants. Explore H03K

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - H03D figures are USPTO PatentsView granted-utility totals for this subclass (1,165 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.