Where does Greenheck Fan Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Greenheck Fan Corporation ranks #17,718 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Greenheck Fan Corporation hold?

Greenheck Fan Corporation holds 16 US utility patents granted between 2016 and 2025, spanning 18 technology areas.

What is Greenheck Fan Corporation's Innovation Score?

Greenheck Fan Corporation has an Innovation Score of 49.0 out of 100 (top 15% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Greenheck Fan Corporation focus on?

Greenheck Fan Corporation's top technology area is F04D (Non-positive-displacement Pumps) with 12 patents, ranking #150 of 1,034 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

Is Greenheck Fan Corporation's patent grant rate increasing or decreasing?

Greenheck Fan Corporation's recent grant velocity is -12% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Greenheck Fan Corporation's patents?

Greenheck Fan Corporation's patents average 18.2 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Greenheck Fan Corporation patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

Greenheck Fan Corporation

USPTO PatentsView assignee record - 16 granted patents across 18 technology areas, recorded in grant years 2016–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: F04D (Non-positive-displacement Pumps).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Greenheck ranks #17,718 of 49,997 tracked US assignees by granted-patent volume, with 16 patents across 18 technology areas.

#17,718
of 49,997 US assignees by volume: Top 15%
by Innovation Score (49.0/100): 18.2
avg claims per patent: -12%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R17718 · US Corporation #17,718 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 16 grants
MID-PACK #17,718/49,997
PHOTO-FINISH Gozney Group
CPC-FOCUS F04D · 18 areas
INNOV-PAR 49.0/100
CLAIMS-RICH 18.2 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -12% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Gozney Group Limited (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Greenheck’s 49.0 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 9.8 pts (20%) Velocity 13.3 pts (27%) Breadth 15.0 pts (31%) Claim depth 10.9 pts (22%)

Qualcomm Incorporated · highest

85
Greenheck Fan · this assignee

49
3D Lighting… · lowest

7

What this shows Greenheck's Innovation Score is 49.0/100 (top 15% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Greenheck?

Each dot is one of Greenheck’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Greenheck’s own 18.2 claims/patent is ABOVE the 9.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Greenheck vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Greenheck's grants concentrate

Greenheck Fan Corporation is a focused PatentsView assignee: 18 CPC subclasses with 75% of grants classified under F04D (Non-positive-displacement Pumps). Peak complete grant year is 2018 (4 grants) versus a trough of 1 in 2016. By volume, Greenheck sits between Gozney Group Limited and Gunitech Corp..

Greenheck's three-year grant acceleration

Greenheck Fan Corporation shows 6 grants in 2022–2024 against only 3 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Gozney Group

16
Great Wall Semico…

16
Green Products &

16
Greenfly

16
Grindmaster

16
Guangzhou Fengsen…

16
Guardtime

16
Gunitech

16
Greenheck Fan ◀

16

What this shows Greenheck holds 16 patents at rank #17,719, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Greenheck

By rank, the assignees closest to #17,719 in granted patent volume.

Leaders in F04D (Non-positive-displacement Pumps)

Other assignees with the most granted patents in Greenheck's primary technology class.

Greenheck's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

49 Top 15% higher than 85% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Greenheck Fan Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	6.3%
2017	1	6.3%
2018	4	25.0%
2019	2	12.5%
2021	1	6.3%
2022	1	6.3%
2023	1	6.3%
2024	4	25.0%
2025partial year	1	6.3%

Which technologies does Greenheck Fan Corporation patent most?

F04D - Non-positive-displacement Pumps 12

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 6

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 4

Y10T - Technical Subjects Covered BY Former US Classification 3

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 2

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 2

F24H - Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General 2

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 2

F23L - Supplying AIR OR Non-combustible Liquids OR Gases TO Combustion Apparatus IN General ; Valves OR Dampers Specially Adapted FOR Controlling AIR Supply OR Draught IN Combustion Apparatus ; Inducing Draught IN Combustion APPARATUS; Tops FOR Chimneys OR Ventilating SHAFTS; Terminals FOR Flues 2

F01D - Non-positive Displacement Machines OR Engines, e.g. Steam Turbines 1

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 1

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

Top 15 of 18 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Greenheck Fan Corporation's patent record in context - here's where to go next.

Greenheck Fan Corporation's lead technology class is F04D (Non-positive-displacement Pumps), 75% of its portfolio - see every assignee active in that class. Explore F04D
Ranked #17,718 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Greenheck Fan Corporation against Gozney Group Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.0/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

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

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

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. Data current as of May 2026.