PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Welead Infrastructure Engineering Technology (zhengzhou), Ltd.

USPTO PatentsView assignee record - 15 granted patents across 13 technology areas, active 2021–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL).

Explore the portfolio See the ranking
15
Total patents granted
13
CPC technology areas
8.3
Avg claims per patent
-
5-year filing velocity

The verdict

Welead holds 15 US patents across 13 technology areas, rank #19,335 of 50,000 tracked assignees.

#19,335
of 50,000 US assignees by volume
Top 51%
by Innovation Score (34.9/100)
8.3
avg claims per patent

Portfolio overview

Welead Infrastructure Engineering Technology (zhengzhou), Ltd. has been granted 15 US utility patents between 2021 and 2024, placing Welead Infrastructure Engineering Technology (zhengzhou), Ltd. at rank #19,335 across all assignees tracked by PlainPatent. This portfolio spans 13 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.3 claims per patent with primary concentration in F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL). As a Foreign Corporation, Welead Infrastructure Engineering Technology (zhengzhou), Ltd. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 34.9/100 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. Historical data spans 2021 through 2024, with 15 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s 8.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 13 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Welead Infrastructure Engineering Technology (zhengzhou), Ltd. against peers pursuing similar technology classes.

How does Welead compare?

Granted US patents 2015–2025 versus the largest corporate holders, this company marked ◀

patents

What this shows Welead holds 15 patents, placing it at rank #19,335 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Welead's Innovation Score vs. every tracked assignee

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

35 Top 51% higher than 49% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). This entry sits in this band. 40–50: 11,491 US assignees (23%). Above this entry. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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 · 2021–2024

02468 2021202220232024 1
USPTO utility patent grants by year · 2021–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table
Welead Infrastructure Engineering Technology (zhengzhou), Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2021 7 46.7%
2022 5 33.3%
2023 2 13.3%
2024 1 6.7%

Which technologies does Welead Infrastructure Engineering Technology (zhengzhou), Ltd. patent most?

Top 13 of 13 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Focused
Claim Depth Simple

Where it ranks

Overall rank by patents

#19,335

Across all tracked assignees

Innovation Score

34.9 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 Welead Infrastructure Engineering Technology (zhengzhou), Ltd. hold?
Welead Infrastructure Engineering Technology (zhengzhou), Ltd. holds 15 US granted patents filed between 2021 and 2024, spanning 13 technology areas.
What is Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s Innovation Score?
Welead Infrastructure Engineering Technology (zhengzhou), Ltd. has an Innovation Score of 34.9 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Welead Infrastructure Engineering Technology (zhengzhou), Ltd. focus on?
Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s top technology area is F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL) with 11 patents. The company has filed patents in 13 CPC subclasses total.
Is Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for Welead Infrastructure Engineering Technology (zhengzhou), Ltd..
What does claim depth mean for Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s patents?
Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s patents average 8.3 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Welead Infrastructure Engineering Technology (zhengzhou), 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.

Guides to patent portfolio analysis

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

How to use this portfolio

Welead's 15 grants land it in the top 51% 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 - Welead ranks #19,335 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in F16L - see who else leads that technology area. F16L 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.

Explore the patent dataset

F16L technology

Welead Infrastructure Engineering Technology (zhengzhou), Ltd.'s primary CPC class, all holders and yearly trends
Top 50 patent holders

See where Welead Infrastructure Engineering Technology (zhengzhou), Ltd. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

All companies → | All technologies → | Rankings →
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

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.