Where does Zhejiang Sanhua Intelligent Controls Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang Sanhua Intelligent Controls Co., Ltd ranks #7,225 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 Zhejiang Sanhua Intelligent Controls Co., Ltd hold?

Zhejiang Sanhua Intelligent Controls Co., Ltd holds 46 US utility patents granted between 2017 and 2024, spanning 31 technology areas.

What is Zhejiang Sanhua Intelligent Controls Co., Ltd's Innovation Score?

Zhejiang Sanhua Intelligent Controls Co., Ltd has an Innovation Score of 61.4 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zhejiang Sanhua Intelligent Controls Co., Ltd's patent grant rate increasing or decreasing?

Zhejiang Sanhua Intelligent Controls Co., Ltd's recent grant velocity is +720% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Zhejiang Sanhua Intelligent Controls Co., Ltd's patents?

Zhejiang Sanhua Intelligent Controls Co., Ltd's patents average 13.9 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

Zhejiang Sanhua Intelligent Controls Co., Ltd

Q: What technology areas does Zhejiang Sanhua Intelligent Controls Co., Ltd focus on?

Zhejiang Sanhua Intelligent Controls Co., Ltd's top technology area is F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems) with 26 patents, ranking #44 of 704 assignees active in that subclass. Grants appear in 31 CPC subclasses total.

Q: How is the Zhejiang Sanhua Intelligent Controls 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 - 46 granted patents across 31 technology areas, recorded in grant years 2017–2024. 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: F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #7,225 of 49,997 tracked US assignees by granted-patent volume, with 46 patents across 31 technology areas.

#7,225
of 49,997 US assignees by volume: Top 3%
by Innovation Score (61.4/100): 13.9
avg claims per patent: +720%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7225 · Foreign Corporation #7,225 · 46 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 46 grants
UPPER-Q #7,225/49,997
PHOTO-FINISH i-PRO
CPC-FOCUS F25B · 31 areas
INNOV-STRONG 61.4/100
CLAIMS-RICH 13.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +720% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: i-PRO Co., Ltd. (±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 Zhejiang’s 61.4 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 13.3 pts (22%) Velocity 20.0 pts (33%) Breadth 19.7 pts (32%) Claim depth 8.4 pts (14%)

Qualcomm Incorporated · highest

85
Evoqua Water · near

61
Carl Zeiss SMS · near

61
Epistar · near

61
SAF-Holland · near

61
Zhejiang Sanhua… · this assignee

61
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 61.4/100 (top 3% 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 Zhejiang?

Each dot is one of Zhejiang’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). Zhejiang’s own 13.9 claims/patent is ABOVE the 11.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Zhejiang's grants concentrate

Zhejiang Sanhua Intelligent Controls Co., Ltd is a focused PatentsView assignee: 31 CPC subclasses with 56.5% of grants classified under F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems). Peak complete grant year is 2024 (13 grants) versus a trough of 1 in 2018. By volume, Zhejiang sits between Worldwise, Inc. and 24/7 Customer, Inc..

Zhejiang's three-year grant acceleration

Zhejiang Sanhua Intelligent Controls Co., Ltd shows 34 grants in 2022–2024 against only 8 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.

Worldwise

46
Xandr

46
Yamashita Rubber

46
ZF Wind Power Ant…

46
Zainar

46
Zeltiq Aesthetics

46
i-pro

46
Zhejiang Sanhua I… ◀

46
24/7 Customer

45

What this shows Zhejiang holds 46 patents at rank #7,222, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhejiang

By rank, the assignees closest to #7,222 in granted patent volume.

Leaders in F25B (Refrigeration Machines)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhejiang, neither rank-band nor same-CPC leaders (those blocks stay above). In F25B (Refrigeration Machines), Zhejiang ranks #44 of 704 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (61 here).

Carl Zeiss SMS Ltd. 61 SAF-Holland, Inc. 61 Epistar Corporation 61 Evoqua Water Technologies LLC 61

Zhejiang's Innovation Score vs. every tracked assignee

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

61 Top 3% higher than 97% 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 · 2017–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Zhejiang Sanhua Intelligent Controls Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	3	6.5%
2018	1	2.2%
2019	1	2.2%
2020	1	2.2%
2021	6	13.0%
2022	11	23.9%
2023	10	21.7%
2024	13	28.3%

Which technologies does Zhejiang Sanhua Intelligent Controls Co., Ltd patent most?

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 26

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 23

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 17

B60H - Arrangements OF Heating, Cooling, Ventilating OR Other Air-treating Devices Specially Adapted FOR Passenger OR Goods Spaces OF Vehicles 7

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 6

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 6

B01D - Separation 4

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 3

F04C - Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps 3

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 3

H02K - Dynamo-electric Machines 3

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

Top 15 of 31 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

Zhejiang Sanhua Intelligent Controls Co., Ltd's patent record in context - here's where to go next.

Zhejiang Sanhua Intelligent Controls Co., Ltd's lead technology class is F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems), 56.5% of its portfolio - see every assignee active in that class. Explore F25B
Ranked #7,225 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang Sanhua Intelligent Controls Co., Ltd against Worldwise, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 61.4/100 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.