PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

C4X Discovery Limited

USPTO PatentsView assignee record - 6 granted patents across 3 technology areas, active 2020–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C07D (HETEROCYCLIC COMPOUNDS).

Explore the portfolio See the ranking
6
Total patents granted
3
CPC technology areas
12.8
Avg claims per patent
-
5-year filing velocity

The verdict

C4X holds 6 US patents across 3 technology areas, rank #39,290 of 50,000 tracked assignees.

#39,290
of 50,000 US assignees by volume
Top 77%
by Innovation Score (27.2/100)
12.8
avg claims per patent

Portfolio overview

C4X Discovery Limited has been granted 6 US utility patents between 2020 and 2024, placing C4X Discovery Limited at rank #39,290 across all assignees tracked by PlainPatent. This portfolio spans 3 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.8 claims per patent with primary concentration in C07D (HETEROCYCLIC COMPOUNDS). As a Foreign Corporation, C4X Discovery Limited is one of the more focused assignees in the PatentsView dataset. By volume, C4X sits between C.c. Imex (6 patents, rank #39,286) and Cakeboxx Technologies, Llc (6 patents, rank #39,294) - the closest US assignees by grant volume. The composite Innovation Score of 27.2/100 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. Historical data spans 2020 through 2024, with 6 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. C4X Discovery Limited's 12.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while specialization in 3 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark C4X Discovery Limited against peers pursuing similar technology classes.

Who files at C4X's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows C4X holds 6 patents at rank #39,290, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

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

Companies ranked near C4X

By rank, the assignees closest to #39,290 in granted patent volume.

Leaders in C07D (Heterocyclic Compounds)

Other assignees with the most granted patents in C4X's primary technology class.

C4X's Innovation Score vs. every tracked assignee

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

27 Top 77% higher than 23% 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%). This entry sits in this band. 30–40: 15,294 US assignees (31%). Above this entry. 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

0.511.522.5 2020202120232024 2
USPTO utility patent grants by year · 2020–2024

Grants by year

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

View data table
C4X Discovery Limited patent grants by year, 2015–2025
Year Patents Granted Share of Period
2020 2 33.3%
2021 1 16.7%
2023 1 16.7%
2024 2 33.3%

Which technologies does C4X Discovery Limited patent most?

Top 3 of 3 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Standard

Where it ranks

Overall rank by patents

#39,290

Across all tracked assignees

Innovation Score

27.2 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 C4X Discovery Limited hold?
C4X Discovery Limited holds 6 US granted patents filed between 2020 and 2024, spanning 3 technology areas.
What is C4X Discovery Limited's Innovation Score?
C4X Discovery Limited has an Innovation Score of 27.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does C4X Discovery Limited focus on?
C4X Discovery Limited's top technology area is C07D (HETEROCYCLIC COMPOUNDS) with 6 patents. The company has filed patents in 3 CPC subclasses total.
Is C4X Discovery Limited's patent filing rate increasing or decreasing?
Insufficient historical data is available to calculate a velocity trend for C4X Discovery Limited.
What does claim depth mean for C4X Discovery Limited's patents?
C4X Discovery Limited's patents average 12.8 claims each. This falls within the standard range, providing solid legal coverage.
How is the C4X Discovery Limited 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

C4X's 6 grants land it in the top 77% 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 - C4X ranks #39,290 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in C07D - see who else leads that technology area. C07D 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

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.