USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Qingdao Haier Washing Machine Co., Ltd.

USPTO PatentsView assignee record - 150 granted patents across 42 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D06F (LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

150

Total patents granted

CPC technology areas

11.6

Avg claims per patent

+113%

5-year filing velocity

The verdict

Qingdao holds 150 US patents across 42 technology areas, rank #2,595 of 50,000 tracked assignees.

#2,595
of 50,000 US assignees by volume: Top 14%
by Innovation Score (50.0/100): 11.6
avg claims per patent: +113%
filing velocity, last 5 yrs

Portfolio overview

Qingdao Haier Washing Machine Co., Ltd. has been granted 150 US utility patents between 2015 and 2025, placing Qingdao Haier Washing Machine Co., Ltd. at rank #2,595 across all assignees tracked by PlainPatent. This portfolio spans 42 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.6 claims per patent with primary concentration in D06F (LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES). As a Foreign Corporation, Qingdao Haier Washing Machine Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Qingdao sits between Harmonic Drive Systems Inc. (150 patents, rank #2,591) and Thomas Jefferson University (150 patents, rank #2,599) - the closest US assignees by grant volume. The composite Innovation Score of 50.0/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 102 grants, compared with 48 in the 2015–2019 window, a +113% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Qingdao Haier Washing Machine Co., Ltd.'s 11.6 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 42 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Qingdao Haier Washing Machine Co., Ltd. against peers pursuing similar technology classes.

Harmonic Drive Sy…

150
Kyoraku

150
Nextracker

150
New Jersey Instit…

150
Samsara

150
Semtech

150
THRU Tubing Solut…

150
Thomas Jefferson…

150
Qingdao Haier Was… ◀

150

What this shows Qingdao holds 150 patents at rank #2,595, 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 #2,595 in granted patent volume.

Leaders in D06F (Laundering)

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, filing velocity, technology breadth, and claim depth (0–100)

50 Top 14% higher than 86% of 50,000 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Qingdao Haier Washing Machine Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	1.3%
2016	6	4.0%
2017	3	2.0%
2018	10	6.7%
2019	27	18.0%
2020	44	29.3%
2021	16	10.7%
2022	17	11.3%
2023	8	5.3%
2024	11	7.3%
2025	6	4.0%

Which technologies does Qingdao Haier Washing Machine Co., Ltd. patent most?

D06F - LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES 140

F16M - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS 23

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 21

F16F - SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION 16

A47L - DOMESTIC WASHING OR CLEANING ; SUCTION CLEANERS IN GENERAL 16

A47B - TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 11

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 7

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 6

F15B - SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 5

F16D - COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES 5

G06F - ELECTRIC DIGITAL DATA PROCESSING 5

B05B - SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 4

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING 4

H02K - DYNAMO-ELECTRIC MACHINES 3

B08B - CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 3

Top 15 of 42 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#2,595

Across all tracked assignees

Innovation Score

50.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Qingdao Haier Washing Machine Co., Ltd. hold?

Qingdao Haier Washing Machine Co., Ltd. holds 150 US granted patents filed between 2015 and 2025, spanning 42 technology areas.

What is Qingdao Haier Washing Machine Co., Ltd.'s Innovation Score?

Qingdao Haier Washing Machine Co., Ltd. has an Innovation Score of 50.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Qingdao Haier Washing Machine Co., Ltd. focus on?

Qingdao Haier Washing Machine Co., Ltd.'s top technology area is D06F (LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES) with 140 patents. The company has filed patents in 42 CPC subclasses total.

Is Qingdao Haier Washing Machine Co., Ltd.'s patent filing rate increasing or decreasing?

Qingdao Haier Washing Machine Co., Ltd.'s recent filing velocity is +113% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Qingdao Haier Washing Machine Co., Ltd.'s patents?

Qingdao Haier Washing Machine Co., Ltd.'s patents average 11.6 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Qingdao Haier Washing Machine 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.

How to use this portfolio

Qingdao's 150 grants land it in the top 14% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Qingdao ranks #2,595 of 50,000. Top 50 holders
Most of this portfolio concentrates in D06F - see who else leads that technology area. D06F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.