Where does Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. ranks #42,525 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd..

What does claim depth mean for Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.'s patents?

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.'s patents average 10.0 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.

Q: How is the Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. 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 PatentsView assignee record - 6 granted patents across 7 technology areas, recorded in grant years 2021–2025. 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: F25D (REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Qingdao ranks #42,525 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 7 technology areas.

#42,525
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.1/100): 10.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R42525 · Foreign Corporation #42,525 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 6 grants
LOWER-Q #42,525/49,997
PHOTO-FINISH Qiagen Redwood City
CPC-NARROW F25D · 7 areas
INNOV-PAR 42.1/100
CLAIMS-PAR 10.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Qiagen Redwood City, Inc. (±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 Qingdao’s 42.1 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 6.7 pts (16%) Velocity 20.0 pts (48%) Breadth 9.4 pts (22%) Claim depth 6.0 pts (14%)

Qualcomm Incorporated · highest

85
Qingdao Haier… · this assignee

42
3D Lighting… · lowest

7

What this shows Qingdao's Innovation Score is 42.1/100 (top 31% 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 Qingdao?

Each dot is one of Qingdao’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). Qingdao’s own 10.0 claims/patent is ABOVE the 7.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Qingdao's grants concentrate

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 66.7% of grants classified under F25D (REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2021. By volume, Qingdao sits between Qiagen Redwood City, Inc. and Qonqave GMBH.

Qingdao's three-year grant acceleration

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. shows 3 grants in 2022–2024 against only 1 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.

Qiagen Redwood Ci…

6
Qianjiang Yongan…

6
Qiduo E-commerce…

6
Qierling (Beijing…

6
Qingdao Jiaonan H…

6
Qingdao TMZ Tools

6
Qnovia

6
Qonqave

6
Qingdao Haier Spe… ◀

6

What this shows Qingdao holds 6 patents at rank #42,494, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Qingdao

By rank, the assignees closest to #42,494 in granted patent volume.

Leaders in F25D (Refrigerators)

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

Qingdao's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	16.7%
2024	3	50.0%
2025partial year	2	33.3%

Which technologies does Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. patent most?

F25D - REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR 4

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

A23B - Preservation OF Foods, Foodstuffs OR Non-alcoholic BEVERAGES; Chemical Ripening OF Fruit OR Vegetables 2

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 2

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 1

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Top 7 of 7 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

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.'s patent record in context - here's where to go next.

Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd.'s lead technology class is F25D (REFRIGERATORS; Cold ROOMS; ICE-BOXES; Cooling OR Freezing Apparatus NOT Otherwise Provided FOR), 66.7% of its portfolio - see every assignee active in that class. Explore F25D
Ranked #42,525 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Qingdao Haier Special Refrigeration Electric Appliance Co., Ltd. against Qiagen Redwood City, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.1/100 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.