Where does Cambridge Silicon Radio Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cambridge Silicon Radio Limited ranks #6,120 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Cambridge Silicon Radio Limited hold?

Cambridge Silicon Radio Limited holds 55 US utility patents granted between 2015 and 2016, spanning 23 technology areas.

What is Cambridge Silicon Radio Limited's Innovation Score?

Cambridge Silicon Radio Limited has an Innovation Score of 42.5 out of 100 (top 30% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Cambridge Silicon Radio Limited focus on?

Cambridge Silicon Radio Limited's top technology area is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication) with 15 patents, ranking #1,732 of 8,956 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

Is Cambridge Silicon Radio Limited's patent grant rate increasing or decreasing?

Cambridge Silicon Radio Limited's recent grant velocity is -100% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Cambridge Silicon Radio Limited's patents?

Cambridge Silicon Radio Limited's patents average 19.4 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Cambridge Silicon Radio 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Cambridge Silicon Radio Limited

USPTO PatentsView assignee record - 55 granted patents across 23 technology areas, recorded in grant years 2015–2016. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H04L (Transmission OF Digital Information, e.g. Telegraphic Communication).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Cambridge ranks #6,120 of 49,997 tracked US assignees by granted-patent volume, with 55 patents across 23 technology areas.

#6,120
of 49,997 US assignees by volume: Top 30%
by Innovation Score (42.5/100): 19.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6120 · Foreign Corporation #6,120 · 55 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 55 grants
UPPER-Q #6,120/49,997
PHOTO-FINISH Beijing Eswin…
CPC-FOCUS H04L · 23 areas
INNOV-PAR 42.5/100
CLAIMS-RICH 19.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Beijing Eswin Computing Technology Co., Ltd. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Cambridge’s 42.5 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 13.9 pts (33%) Velocity 0.0 pts (0%) Breadth 17.0 pts (40%) Claim depth 11.6 pts (27%)

Qualcomm Incorporated · highest

85
Aetna · near

42
Cambridge Silicon… · this assignee

42
Crisi Medical Systems · near

42
Patek Philippe Geneve · near

42
Vital Connect · near

42
3D Lighting… · lowest

7

What this shows Cambridge's Innovation Score is 42.5/100 (top 30% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Cambridge?

Each dot is one of Cambridge’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Cambridge’s own 19.4 claims/patent is ABOVE the 11.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Cambridge vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Cambridge's grants concentrate

Cambridge Silicon Radio Limited is a focused PatentsView assignee: 23 CPC subclasses with 27.3% of grants classified under H04L (Transmission OF Digital Information, e.g. Telegraphic Communication). Peak complete grant year is 2015 (54 grants) versus a trough of 1 in 2016. By volume, Cambridge sits between Beijing Eswin Computing Technology Co., Ltd. and Crocus Technology SA.

Beijing Eswin Com…

55
Boise State Unive…

55
Brose Fahrzeugtei…

55
Bugatti Internati…

55
Chapin Manufactur…

55
China Tobacco Hun…

55
China Tobacco Yun…

55
Crocus Technology

55
Cambridge Silicon… ◀

55

What this shows Cambridge holds 55 patents at rank #6,119, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cambridge

By rank, the assignees closest to #6,119 in granted patent volume.

Leaders in H04L (Transmission OF Digital Information)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Cambridge, neither rank-band nor same-CPC leaders (those blocks stay above). In H04L (Transmission OF Digital Information), Cambridge ranks #1,732 of 8,956 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Patek Philippe SA Geneve 42 Crisi Medical Systems, Inc. 42 Vital Connect, Inc. 42 Aetna Inc. 42

Similar claim depth

Nearest assignees by average claims per patent (19.4 here).

Vonage Business Inc. 19.4 avg Pinterest, Inc. 19.4 avg L3Harris Technologies, Inc. 19.4 avg Fyusion, Inc. 19.4 avg

Cambridge's Innovation Score vs. every tracked assignee

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

42 Top 30% higher than 70% of 49,997 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 · 2015–2016

Grants by year

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

View data table

Cambridge Silicon Radio Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	54	98.2%
2016	1	1.8%

Which technologies does Cambridge Silicon Radio Limited patent most?

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 15

H04W - Wireless Communication Networks 13

H04B - Transmission 12

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 9

H01L - Semiconductor Devices NOT Covered BY Class H10 8

G06F - Electric Digital Data Processing 5

H03F - Amplifiers 4

H03L - Automatic Control, Starting, Synchronisation OR Stabilisation OF Generators OF Electronic Oscillations OR Pulses 3

H10D - Inorganic Electric Semiconductor Devices 3

Y02D - Climate Change Mitigation Technologies IN Information AND Communication Technologies [ICT], I.E. Information AND Communication Technologies Aiming AT THE Reduction OF Their OWN Energy USE 3

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 3

H04J - Multiplex Communication 3

H03J - Tuning Resonant CIRCUITS; Selecting Resonant Circuits 2

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 2

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 2

Top 15 of 23 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Cambridge Silicon Radio Limited's patent record in context - here's where to go next.

Cambridge Silicon Radio Limited's lead technology class is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication), 27.3% of its portfolio - see every assignee active in that class. Explore H04L
Ranked #6,120 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Cambridge Silicon Radio Limited against Beijing Eswin Computing Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.5/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.