USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 10 technology areas, active 2018–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

10.1

Avg claims per patent

+100%

5-year filing velocity

The verdict

Beijing holds 9 US patents across 10 technology areas, rank #28,211 of 50,000 tracked assignees.

#28,211
of 50,000 US assignees by volume: Top 24%
by Innovation Score (45.2/100): 10.1
avg claims per patent: +100%
filing velocity, last 5 yrs

Portfolio overview

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. has been granted 9 US utility patents between 2018 and 2025, placing Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. at rank #28,211 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.1 claims per patent with primary concentration in H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES). As a Foreign Corporation, Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Beijing sits between Beijing Edifier Technology Co., Ltd (9 patents, rank #28,207) and Beyeonics Surgical Ltd. (9 patents, rank #28,215) - the closest US assignees by grant volume. The composite Innovation Score of 45.2/100 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 6 grants, compared with 3 in the 2015–2019 window, a +100% 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. Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s 10.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. against peers pursuing similar technology classes.

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Beyeonics Surgical

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Beijing Zhong KE… ◀

9

What this shows Beijing holds 9 patents at rank #28,211, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Beijing

By rank, the assignees closest to #28,211 in granted patent volume.

Leaders in H01F (Magnets)

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

Beijing's Innovation Score vs. every tracked assignee

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

45 Top 24% higher than 76% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	3	33.3%
2020	1	11.1%
2023	1	11.1%
2024	2	22.2%
2025	2	22.2%

Which technologies does Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. patent most?

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 9

C22C - ALLOYS 5

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 3

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 2

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 2

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 2

H02K - DYNAMO-ELECTRIC MACHINES 1

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 1

B02C - CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 1

B22D - CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 1

Top 10 of 10 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#28,211

Across all tracked assignees

Innovation Score

45.2 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 Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. hold?

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. holds 9 US granted patents filed between 2018 and 2025, spanning 10 technology areas.

What is Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s Innovation Score?

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. has an Innovation Score of 45.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd. focus on?

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES) with 9 patents. The company has filed patents in 10 CPC subclasses total.

Is Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s patent filing rate increasing or decreasing?

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s recent filing velocity is +100% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s patents?

Beijing Zhong KE SAN HUAN Hi-tech Co., Ltd.'s patents average 10.1 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Beijing Zhong KE SAN HUAN Hi-tech 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

Beijing's 9 grants land it in the top 24% 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 - Beijing ranks #28,211 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01F - see who else leads that technology area. H01F 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

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.