USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.

USPTO PatentsView assignee record - 47 granted patents across 18 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.3

Avg claims per patent

+94%

5-year filing velocity

The verdict

Sanhua holds 47 US patents across 18 technology areas, rank #7,071 of 50,000 tracked assignees.

#7,071
of 50,000 US assignees by volume: Top 20%
by Innovation Score (47.0/100): 14.3
avg claims per patent: +94%
filing velocity, last 5 yrs

Portfolio overview

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. has been granted 47 US utility patents between 2015 and 2025, placing Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. at rank #7,071 across all assignees tracked by PlainPatent. This portfolio spans 18 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.3 claims per patent with primary concentration in F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION). As a Foreign Corporation, Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sanhua sits between Roche Innovation Center Copenhagen A/s (47 patents, rank #7,067) and SEG Automotive Germany Gmbh (47 patents, rank #7,075) - the closest US assignees by grant volume. The composite Innovation Score of 47.0/100 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 31 grants, compared with 16 in the 2015–2019 window, a +94% 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. Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s 14.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 18 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. against peers pursuing similar technology classes.

Roche Innovation…

47
Rodenstock

47
Racing Optics

47
Samsung EletrÔNIC…

47
SAP

47
SEB

47
SEEO

47
SEG Automotive Ge…

47
Sanhua (Hangzhou)… ◀

47

What this shows Sanhua holds 47 patents at rank #7,071, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sanhua

By rank, the assignees closest to #7,071 in granted patent volume.

Leaders in F28F (Details OF Heat-exchange AND Heat-transfer Apparatus)

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

Sanhua's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	2.1%
2016	8	17.0%
2017	1	2.1%
2018	6	12.8%
2020	6	12.8%
2021	2	4.3%
2022	4	8.5%
2023	1	2.1%
2024	7	14.9%
2025	11	23.4%

Which technologies does Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. patent most?

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 43

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 38

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 20

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 8

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 7

B23P - METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 3

B21C - MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL 3

F25D - REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR 2

B67D - DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR 1

A23G - COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF 1

F28B - STEAM OR VAPOUR CONDENSERS 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

G06F - ELECTRIC DIGITAL DATA PROCESSING 1

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1

Top 15 of 18 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#7,071

Across all tracked assignees

Innovation Score

47.0 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 Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. hold?

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. holds 47 US granted patents filed between 2015 and 2025, spanning 18 technology areas.

What is Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s Innovation Score?

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. has an Innovation Score of 47.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd. focus on?

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s top technology area is F28F (DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION) with 43 patents. The company has filed patents in 18 CPC subclasses total.

Is Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s patent filing rate increasing or decreasing?

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s recent filing velocity is +94% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s patents?

Sanhua (hangzhou) Micro Channel HEAT Exchanger Co., Ltd.'s patents average 14.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the Sanhua (hangzhou) Micro Channel HEAT Exchanger 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

Sanhua's 47 grants land it in the top 20% 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 - Sanhua ranks #7,071 of 50,000. Top 50 holders
Most of this portfolio concentrates in F28F - see who else leads that technology area. F28F 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.