PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Safekey Engineering Technology (zhengzhou), Ltd.

USPTO PatentsView assignee record - 17 granted patents across 22 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E02D (FOUNDATIONS; EXCAVATIONS; EMBANKMENTS ; UNDERGROUND OR UNDERWATER STRUCTURES).

Explore the portfolio See the ranking
17
Total patents granted
22
CPC technology areas
7.2
Avg claims per patent
+83%
5-year filing velocity

The verdict

Safekey holds 17 US patents across 22 technology areas, rank #17,143 of 50,000 tracked assignees.

#17,143
of 50,000 US assignees by volume
Top 26%
by Innovation Score (44.2/100)
7.2
avg claims per patent
+83%
filing velocity, last 5 yrs

Portfolio overview

SAFEKEY Engineering Technology (Zhengzhou), Ltd. has been granted 17 US utility patents between 2015 and 2025, placing SAFEKEY Engineering Technology (Zhengzhou), Ltd. at rank #17,143 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.2 claims per patent with primary concentration in E02D (FOUNDATIONS; EXCAVATIONS; EMBANKMENTS ; UNDERGROUND OR UNDERWATER STRUCTURES). As a Foreign Corporation, SAFEKEY Engineering Technology (Zhengzhou), Ltd. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 44.2/100 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 11 grants, compared with 6 in the 2015–2019 window, a +83% 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. SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s 7.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 22 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark SAFEKEY Engineering Technology (Zhengzhou), Ltd. against peers pursuing similar technology classes.

How does SAFEKEY compare?

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

patents

What this shows SAFEKEY holds 17 patents, placing it at rank #17,143 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

SAFEKEY's Innovation Score vs. every tracked assignee

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

44 Top 26% higher than 74% 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%). Below this entry. 40–50: 11,491 US assignees (23%). This entry sits in this band. 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 · 2015–2025

012345 20152016201720212022202320242025 2
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
SAFEKEY Engineering Technology (Zhengzhou), Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 4 23.5%
2016 1 5.9%
2017 1 5.9%
2021 3 17.6%
2022 1 5.9%
2023 2 11.8%
2024 3 17.6%
2025 2 11.8%

Which technologies does SAFEKEY Engineering Technology (Zhengzhou), Ltd. patent most?

Top 15 of 22 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#17,143

Across all tracked assignees

Innovation Score

44.2 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 SAFEKEY Engineering Technology (Zhengzhou), Ltd. hold?
SAFEKEY Engineering Technology (Zhengzhou), Ltd. holds 17 US granted patents filed between 2015 and 2025, spanning 22 technology areas.
What is SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s Innovation Score?
SAFEKEY Engineering Technology (Zhengzhou), Ltd. has an Innovation Score of 44.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does SAFEKEY Engineering Technology (Zhengzhou), Ltd. focus on?
SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s top technology area is E02D (FOUNDATIONS; EXCAVATIONS; EMBANKMENTS ; UNDERGROUND OR UNDERWATER STRUCTURES) with 6 patents. The company has filed patents in 22 CPC subclasses total.
Is SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s patent filing rate increasing or decreasing?
SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s recent filing velocity is +83% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s patents?
SAFEKEY Engineering Technology (Zhengzhou), Ltd.'s patents average 7.2 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the SAFEKEY 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

Safekey's 17 grants land it in the top 26% 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 - Safekey ranks #17,143 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in E02D - see who else leads that technology area. E02D 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

E02D technology

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

See where SAFEKEY 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.