PlainPatent

CPC technology class · F03

F03D - Wind Motors

Wind motors. 7,370 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

7,370
US patents granted
#1/5
in F03
62.0%
F03 class share
+21%
5-yr velocity

The verdict

According to USPTO PatentsView, Wind Motors ranks #202 of 670 CPC technology areas - 7,370 US patents granted since 2015, with recorded grant volume up 21% over five years.

#202
of 670 CPC technology areas
7,370
US patents granted, 2015–2025
Vestas Wind Systems A/S
leading assignee (1,044)
+21%
grant velocity, last 5 yrs

How F03D's grant cadence moved

Between 2020–2024, F03D recorded 3,630 grants versus 2,998 in 2015–2019 (+21% equal-window velocity). Across complete years, output peaked in 2024 at 844 grants and bottomed in 2015 at 536 (+57% peak-over-trough). Lead assignee Vestas Wind Systems A/S holds 14.2% of the class ; the top three share 31.2%.

Leaderboard read

F03D concentration, lead at 14.2%

Vestas Wind Systems A/S leads this historical grant record at 14.2% of F03D - foreign corporation assignees hold 75% of class grants (4,022 of 5,356). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
14.2%

1,044 of 7,370 grants

Top three share
31.2%

of the class's recorded grants

Lead over #2
238

more grants than General Electric Company

Where F03D sits inside F03

Among 5 subclasses in F03 (Machines OR Engines FOR LIQUIDS; Wind, Spring, OR Weight MOTORS; Producing Mechanical Power OR A Reactive Propulsive Thrust, NOT Otherwise Provided FOR), F03D ranks #1 and holds 62.0% of the parent class's 11,891 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

F03G 2,252 F03B 1,544 F03C 404 F03H 321

Rising assignees active in F03D

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. #1 GE Infrastructure Technology LLC 80x 2 → 160 company-wide · 40 in F03D
  2. #2 LM Wind Power A/S 47x 1 → 47 company-wide · 73 in F03D
  3. #3 Rondo Energy, Inc. 36x 0 → 36 company-wide · 41 in F03D
  4. #4 Siemens Gamesa Renewable Energy Service GmbH 17x 0 → 17 company-wide · 17 in F03D
  5. #5 LM Wind Power International Technology II APS 17x 0 → 17 company-wide · 13 in F03D

F03D grants by year, peak 2024 (844)

US utility-patent grants per year in F03D, 2015–2025 - recent five years are up 21% versus 2015–2019.

500600700800900 20152016201720182019202020212022202320242025 529

Who leads F03D?

The 12 most active assignees in Wind Motors - wider bars mean more grants

patents

What this shows Vestas Wind Systems… is the most active filer in F03D, holding 1,044 of the 7,370 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 F03D
Rank Company Patents in F03D
#1 Vestas Wind Systems A/S 1,044
#2 General Electric Company 806
#3 Siemens Gamesa Renewable Energy 450
#4 Wobben Properties GmbH 342
#5 Siemens Aktiengesellschaft 266
#6 General Electric Renovables Espana, S.L. 142
#7 LM WP Patent Holding A/S 94
#8 Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. 91
#9 LM Wind Power A/S 73
#10 Siemens Gamesa Renewable Energy Innovation & Technology S. L. 59
#11 Senvion SE 53
#12 ZF Friedrichshafen AG 45
#13 Alstom Renewable Technologies 44
#14 Gamesa Innovation & Technology, S. L. 43
#15 Blade Dynamics Limited 42
#16 Rondo Energy, Inc. 41
#17 GE Infrastructure Technology LLC 40
#18 Senvion GmbH 40
#19 NTN Corporation 38
#20 Flender GmbH 36

Footprint here vs. claim strategy

Each dot is a leading F03D 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 F03D assignees by class footprint. Bubble size = patents in F03D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 1012141618 -500050010001500 Patents in F03D Avg claims / patent (company-wide) Vestas Wind Systems…General ElectricSiemens Gamesa…Wobben PropertiesSiemens Aktiengesellsc…General Electric…Lm Wp Patent Holding…Beijing Goldwind…Lm Wind Power A/SSiemens Gamesa…Senvion SeZf FriedrichshafenAlstom RenewableGamesa Innovation &…
Top 14 F03D assignees by class footprint. Bubble size = patents in F03D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near F03D's 7,370-grant footprint

Nationwide nearest neighbors for F03D (#202 of 670 by volume ; lead share 14.2%) - not the F03 parent-class siblings above.

Nearest by grant volume

E06B 7,398 B21D 7,309 F16J 7,442 G10K 7,488

Nearest by lead-assignee share

G04C 14.1% F05D 14.1% G11C 14.1% A24F 14.1%

Questions about F03D

Which company holds the most patents in F03D?
Vestas Wind Systems A/S leads F03D with 1,044 patents (14.2% of the subclass). By PatentsView assignee type, foreign corporations account for 75% of class grants.
Which F03D assignees grew fastest recently?
Among assignees with ≥5 grants in F03D, GE Infrastructure Technology LLC shows the highest company-wide grant multiple (80x: 2 grants in 2019–2021 → 160 in 2022–2024) while holding 40 patents in this subclass. Growth is company-wide, not class-only.
How does F03D compare inside parent class F03?
Inside F03 (Machines OR Engines FOR LIQUIDS; Wind, Spring, OR Weight MOTORS; Producing Mechanical Power OR A Reactive Propulsive Thrust, NOT Otherwise Provided FOR), F03D ranks #1 of 5 subclasses by grant volume and holds 62.0% of the parent class total. The largest sibling is F03G (2,252 grants).

What to do with this data

F03D in context - here's where to go next.

  • Vestas Wind Systems A/S leads F03D with 1,044 grants in this class. See full portfolio
  • F03D ranks #202 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class F03, the largest sibling subclass is F03G with 2,252 grants. Explore F03G

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

Methodology - F03D figures are USPTO PatentsView granted-utility totals for this subclass (7,370 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.