Where does Callfire, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Callfire, Inc. ranks #11,954 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 Callfire, Inc. hold?

Callfire, Inc. holds 25 US utility patents granted between 2018 and 2025, spanning 4 technology areas.

What is Callfire, Inc.'s Innovation Score?

Callfire, Inc. has an Innovation Score of 37.0 out of 100 (top 45% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Callfire, Inc. focus on?

Callfire, Inc.'s top technology area is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication) with 23 patents, ranking #1,229 of 8,956 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Callfire, Inc.'s patent grant rate increasing or decreasing?

Callfire, Inc.'s recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Callfire, Inc.'s patents average 17.7 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 Callfire, 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

Callfire, Inc.

USPTO PatentsView assignee record - 25 granted patents across 4 technology areas, recorded in grant years 2018–2025. 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, Callfire ranks #11,954 of 49,997 tracked US assignees by granted-patent volume, with 25 patents across 4 technology areas.

#11,954
of 49,997 US assignees by volume: Top 45%
by Innovation Score (37.0/100): 17.7
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11954 · US Corporation #11,954 · 25 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 25 grants
UPPER-Q #11,954/49,997
PHOTO-FINISH Camelot UK Bidco
CPC-NARROW H04L · 4 areas
INNOV-THIN 37.0/100
CLAIMS-RICH 17.7 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Camelot UK Bidco Limited (±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 Callfire’s 37.0 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 11.3 pts (31%) Velocity 8.0 pts (22%) Breadth 7.1 pts (19%) Claim depth 10.6 pts (29%)

Qualcomm Incorporated · highest

85
Callfire · this assignee

37
Canadian National… · near

37
GE Oil & Gas… · near

37
Phoenix · near

37
Rudolph · near

37
3D Lighting… · lowest

7

What this shows Callfire's Innovation Score is 37.0/100 (top 45% 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 Callfire?

Each dot is one of Callfire’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). Callfire’s own 17.7 claims/patent is ABOVE the 9.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Callfire's grants concentrate

Callfire, Inc. is a focused PatentsView assignee: 4 CPC subclasses with 92% of grants classified under H04L (Transmission OF Digital Information, e.g. Telegraphic Communication). Peak complete grant year is 2021 (5 grants) versus a trough of 2 in 2018. By volume, Callfire sits between Columbia Aluminum Products, LLC and Carson Optical, Inc..

Callfire's three-year grant acceleration

Callfire, Inc. shows 12 grants in 2022–2024 against only 10 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Columbia Aluminum…

25
Component Hardwar…

25
Convotherm-elektr…

25
Cspc Zhongqi Phar…

25
Camelot UK Bidco

25
Cape Analytics

25
Carl Zeiss Sports…

25
Carson Optical

25
Callfire ◀

25

What this shows Callfire holds 25 patents at rank #11,965, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Callfire

By rank, the assignees closest to #11,965 in granted patent volume.

Leaders in H04L (Transmission OF Digital Information)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Callfire, neither rank-band nor same-CPC leaders (those blocks stay above). In H04L (Transmission OF Digital Information), Callfire ranks #1,229 of 8,956 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (37 here).

GE Oil & Gas Compression Systems, LLC 37 Rudolph Technologies, Inc. 37 Phoenix, LLC 37 Canadian National Railway Company 37

Callfire's Innovation Score vs. every tracked assignee

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

37 Top 45% higher than 55% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Callfire, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	8.0%
2019	2	8.0%
2020	3	12.0%
2021	5	20.0%
2022	3	12.0%
2023	4	16.0%
2024	5	20.0%
2025partial year	1	4.0%

Which technologies does Callfire, Inc. patent most?

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 23

H04W - Wireless Communication Networks 18

H04M - Telephonic Communication 14

G06N - Computing Arrangements Based ON Specific Computational Models 3

Top 4 of 4 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

Callfire, Inc.'s patent record in context - here's where to go next.

Callfire, Inc.'s lead technology class is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication), 92% of its portfolio - see every assignee active in that class. Explore H04L
Ranked #11,954 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Callfire, Inc. against Columbia Aluminum Products, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.0/100 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.