USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Cisdi Engineering Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 10 technology areas, active 2019–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE).

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

+700%

5-year filing velocity

The verdict

Cisdi holds 9 US patents across 10 technology areas, rank #28,374 of 50,000 tracked assignees.

#28,374
of 50,000 US assignees by volume: Top 61%
by Innovation Score (31.9/100): 10.1
avg claims per patent: +700%
filing velocity, last 5 yrs

Portfolio overview

Cisdi Engineering Co., Ltd. has been granted 9 US utility patents between 2019 and 2025, placing Cisdi Engineering Co., Ltd. at rank #28,374 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 F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE). As a Foreign Corporation, Cisdi Engineering Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Cisdi sits between CHZ Technologies, Llc (9 patents, rank #28,370) and Clean.io, Inc. (9 patents, rank #28,378) - the closest US assignees by grant volume. The composite Innovation Score of 31.9/100 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 8 grants, compared with 1 in the 2015–2019 window, a +700% 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. Cisdi Engineering 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 Cisdi Engineering Co., Ltd. against peers pursuing similar technology classes.

CHZ

9
CIAR S P A

9
CIMA LABS

9
Cirius Messaging

9
CJ 4dplex

9
Claremont Biosolu…

9
Classic Connectors

9
Clean IO

9
Cisdi Engineering ◀

9

What this shows Cisdi holds 9 patents at rank #28,374, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cisdi

By rank, the assignees closest to #28,374 in granted patent volume.

Leaders in F27D (Details OR Accessories OF Furnaces)

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

Cisdi's Innovation Score vs. every tracked assignee

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

32 Top 61% higher than 39% 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 · 2019–2025

Grants by year

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

View data table

Cisdi Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	11.1%
2020	2	22.2%
2021	1	11.1%
2023	3	33.3%
2024	1	11.1%
2025	1	11.1%

Which technologies does Cisdi Engineering Co., Ltd. patent most?

F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 4

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 4

C21C - PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS 4

F27B - FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS 4

B65G - TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS 3

B21B - ROLLING OF METAL 1

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

F16H - GEARING 1

B60P - VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS 1

B65D - CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 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

#28,374

Across all tracked assignees

Innovation Score

31.9 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 Cisdi Engineering Co., Ltd. hold?

Cisdi Engineering Co., Ltd. holds 9 US granted patents filed between 2019 and 2025, spanning 10 technology areas.

What is Cisdi Engineering Co., Ltd.'s Innovation Score?

Cisdi Engineering Co., Ltd. has an Innovation Score of 31.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Cisdi Engineering Co., Ltd. focus on?

Cisdi Engineering Co., Ltd.'s top technology area is F27D (DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE) with 4 patents. The company has filed patents in 10 CPC subclasses total.

Is Cisdi Engineering Co., Ltd.'s patent filing rate increasing or decreasing?

Cisdi Engineering Co., Ltd.'s recent filing velocity is +700% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Cisdi Engineering Co., Ltd.'s patents?

Cisdi Engineering Co., Ltd.'s patents average 10.1 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Cisdi Engineering 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

Cisdi's 9 grants land it in the top 61% 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 - Cisdi ranks #28,374 of 50,000. Top 50 holders
Most of this portfolio concentrates in F27D - see who else leads that technology area. F27D 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.