USPTO 2015–2025 USPTO PatentsView Foreign Corporation

CDT Oxford Limited

USPTO PatentsView assignee record - 6 granted patents across 15 technology areas, active 2015–2017. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

21.8

Avg claims per patent

-100%

5-year filing velocity

The verdict

CDT holds 6 US patents across 15 technology areas, rank #39,329 of 50,000 tracked assignees.

#39,329
of 50,000 US assignees by volume: Top 55%
by Innovation Score (33.5/100): 21.8
avg claims per patent: -100%
filing velocity, last 5 yrs

Portfolio overview

CDT Oxford Limited has been granted 6 US utility patents between 2015 and 2017, placing CDT Oxford Limited at rank #39,329 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 21.8 claims per patent with primary concentration in H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES). As a Foreign Corporation, CDT Oxford Limited is one of the more focused assignees in the PatentsView dataset. By volume, CDT sits between CCCC Highway Consultants Co. Ltd. (6 patents, rank #39,325) and Celltrend Gmbh (6 patents, rank #39,333) - the closest US assignees by grant volume. The composite Innovation Score of 33.5/100 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 0 grants, compared with 6 in the 2015–2019 window, a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. CDT Oxford Limited's 21.8 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CDT Oxford Limited against peers pursuing similar technology classes.

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What this shows CDT holds 6 patents at rank #39,329, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near CDT

By rank, the assignees closest to #39,329 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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

CDT's Innovation Score vs. every tracked assignee

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

34 Top 55% higher than 45% 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 · 2015–2017

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

CDT Oxford Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	83.3%
2017	1	16.7%

Which technologies does CDT Oxford Limited patent most?

H10K - ORGANIC ELECTRIC SOLID-STATE DEVICES 5

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 4

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 4

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM 1

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 1

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS 1

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 1

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 1

C07D - HETEROCYCLIC COMPOUNDS 1

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Complex

Velocity Declining

Where it ranks

Overall rank by patents

#39,329

Across all tracked assignees

Innovation Score

33.5 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 CDT Oxford Limited hold?

CDT Oxford Limited holds 6 US granted patents filed between 2015 and 2017, spanning 15 technology areas.

What is CDT Oxford Limited's Innovation Score?

CDT Oxford Limited has an Innovation Score of 33.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does CDT Oxford Limited focus on?

CDT Oxford Limited's top technology area is H10K (ORGANIC ELECTRIC SOLID-STATE DEVICES) with 5 patents. The company has filed patents in 15 CPC subclasses total.

Is CDT Oxford Limited's patent filing rate increasing or decreasing?

CDT Oxford Limited's recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for CDT Oxford Limited's patents?

CDT Oxford Limited's patents average 21.8 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.

How is the CDT Oxford 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

CDT's 6 grants land it in the top 55% 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 - CDT ranks #39,329 of 50,000. Top 50 holders
Most of this portfolio concentrates in H10K - see who else leads that technology area. H10K 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 · May 15, 2026

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.