USPTO 2015–2025 USPTO PatentsView US Corporation

Calix, Inc.

USPTO PatentsView assignee record - 68 granted patents across 36 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H04L (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

19.8

Avg claims per patent

-45%

5-year filing velocity

The verdict

Calix holds 68 US patents across 36 technology areas, rank #5,064 of 50,000 tracked assignees.

#5,064
of 50,000 US assignees by volume: Top 10%
by Innovation Score (52.2/100): 19.8
avg claims per patent: -45%
filing velocity, last 5 yrs

Portfolio overview

Calix, Inc. has been granted 68 US utility patents between 2015 and 2025, placing Calix, Inc. at rank #5,064 across all assignees tracked by PlainPatent. This portfolio spans 36 distinct Cooperative Patent Classification (CPC) subclasses, averaging 19.8 claims per patent with primary concentration in H04L (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION). As a US Corporation, Calix, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Calix sits between BAE Systems Controls Inc. (68 patents, rank #5,060) and Daimler Truck Ag (68 patents, rank #5,068) - the closest US assignees by grant volume. The composite Innovation Score of 52.2/100 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 24 grants, compared with 44 in the 2015–2019 window, a -45% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US 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. Calix, Inc.'s 19.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 36 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Calix, Inc. against peers pursuing similar technology classes.

BAE Systems Contr…

68
British Telecommu…

68
Cardioinsight

68
Chiyoda

68
Carefusion German…

68
China University…

68
Crossroads Extrem…

68
Daimler Truck

68
Calix ◀

68

What this shows Calix holds 68 patents at rank #5,064, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Calix

By rank, the assignees closest to #5,064 in granted patent volume.

Leaders in H04L (Transmission OF Digital Information)

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

Calix's Innovation Score vs. every tracked assignee

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

52 Top 10% higher than 90% 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 · 2015–2025

Grants by year

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

View data table

Calix, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	13	19.1%
2016	12	17.6%
2017	7	10.3%
2018	6	8.8%
2019	6	8.8%
2020	6	8.8%
2021	3	4.4%
2022	4	5.9%
2023	3	4.4%
2024	3	4.4%
2025	5	7.4%

Which technologies does Calix, Inc. patent most?

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 34

H04B - TRANSMISSION 20

H04Q - SELECTING 20

H04J - MULTIPLEX COMMUNICATION 17

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 13

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 12

C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS 8

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 8

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 8

H04W - WIRELESS COMMUNICATION NETWORKS 7

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 6

B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING 3

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 3

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 3

Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] 3

Top 15 of 36 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#5,064

Across all tracked assignees

Innovation Score

52.2 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 Calix, Inc. hold?

Calix, Inc. holds 68 US granted patents filed between 2015 and 2025, spanning 36 technology areas.

What is Calix, Inc.'s Innovation Score?

Calix, Inc. has an Innovation Score of 52.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Calix, Inc. focus on?

Calix, Inc.'s top technology area is H04L (TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION) with 34 patents. The company has filed patents in 36 CPC subclasses total.

Is Calix, Inc.'s patent filing rate increasing or decreasing?

Calix, Inc.'s recent filing velocity is -45% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Calix, Inc.'s patents?

Calix, Inc.'s patents average 19.8 claims each. This falls within the standard range, providing solid legal coverage.

How is the Calix, Inc. 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

Calix's 68 grants land it in the top 10% 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 - Calix ranks #5,064 of 50,000. Top 50 holders
Most of this portfolio concentrates in H04L - see who else leads that technology area. H04L 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.