Where does Callahan Cellular L.L.C. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Callahan Cellular L.L.C. ranks #4,413 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 Callahan Cellular L.L.C. hold?

Callahan Cellular L.L.C. holds 80 US utility patents granted between 2015 and 2023, spanning 26 technology areas.

What is Callahan Cellular L.L.C.'s Innovation Score?

Callahan Cellular L.L.C. has an Innovation Score of 46.5 out of 100 (top 21% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Callahan Cellular L.L.C.'s patent grant rate increasing or decreasing?

Callahan Cellular L.L.C.'s recent grant velocity is -73% 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 Callahan Cellular L.L.C.'s patents?

Callahan Cellular L.L.C.'s patents average 20.1 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 Callahan Cellular L.L.C. 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

Callahan Cellular L.L.C.

Q: What technology areas does Callahan Cellular L.L.C. focus on?

Callahan Cellular L.L.C.'s top technology area is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication) with 43 patents. Grants appear in 26 CPC subclasses total.

USPTO PatentsView assignee record - 80 granted patents across 26 technology areas, recorded in grant years 2015–2023. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Callahan ranks #4,413 of 49,997 tracked US assignees by granted-patent volume, with 80 patents across 26 technology areas.

#4,413
of 49,997 US assignees by volume: Top 21%
by Innovation Score (46.5/100): 20.1
avg claims per patent: -73%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4413 · US Corporation #4,413 · 80 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 80 grants
TOP-DECILE #4,413/49,997
PHOTO-FINISH 100% Speedlab
CPC-FOCUS H04L · 26 areas
INNOV-PAR 46.5/100
CLAIMS-DENSE 20.1 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -73% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: 100% Speedlab, LLC (±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.

Qualcomm Incorporated · highest

85
Callahan Cellular L… · this assignee

46
Clearview AI · near

46
DeepSig · near

46
Invacare · near

46
Naval Group · near

46
3D Lighting… · lowest

7

What this shows Callahan's Innovation Score is 46.5/100 (top 21% 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.

Where Callahan's grants concentrate

Callahan Cellular L.L.C. is a focused PatentsView assignee: 26 CPC subclasses with 53.8% of grants classified under H04L (Transmission OF Digital Information, e.g. Telegraphic Communication). Peak complete grant year is 2016 (22 grants) versus a trough of 1 in 2022. By volume, Callahan sits between 100% Speedlab, LLC and Dupont Safety & Construction, Inc..

Callahan's three-year grant acceleration

From 2019–2021 to 2022–2024, Callahan Cellular L.L.C. moved from 22 to 4 grants (0.18x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

100% Speedlab

80
Avnera

80
Blue Cube IP

80
Bayer Materialsci…

80
Capital One Finan…

80
Coherent

80
Coravin

80
Dupont Safety & C…

80
Callahan Cellular… ◀

80

What this shows Callahan holds 80 patents at rank #4,413, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Callahan

By rank, the assignees closest to #4,413 in granted patent volume.

Leaders in H04L (Transmission OF Digital Information)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Callahan, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Invacare Corporation 46 DeepSig Inc. 46 Naval Group 46 Clearview AI, Inc. 46

Similar claim depth

Nearest assignees by average claims per patent (20.1 here).

Webroot Inc. 20.1 avg Atrium Medical Corporation 20.1 avg Medtronic Navigation, Inc. 20.1 avg Infosys Limited 20.1 avg

Callahan's Innovation Score vs. every tracked assignee

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

46 Top 21% higher than 79% 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 · 2015–2023

Grants by year

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

View data table

Callahan Cellular L.L.C. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	2.5%
2016	22	27.5%
2017	16	20.0%
2018	14	17.5%
2019	9	11.3%
2020	9	11.3%
2021	4	5.0%
2022	1	1.3%
2023	3	3.8%

Which technologies does Callahan Cellular L.L.C. patent most?

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 43

G06F - Electric Digital Data Processing 41

H04N - Pictorial Communication, e.g. Television 14

H01L - Semiconductor Devices NOT Covered BY Class H10 13

H10D - Inorganic Electric Semiconductor Devices 9

H04M - Telephonic Communication 8

H03K - Pulse Technique 8

H04W - Wireless Communication Networks 7

G02B - Optical Elements, Systems OR Apparatus 7

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 7

G11C - Static Stores 5

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 5

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 5

G06T - Image Data Processing OR Generation, IN General 5

H10B - Electronic Memory Devices 5

Top 15 of 26 technology areas

Where it ranks

Overall rank by patents

#4,413

of 49,997 tracked assignees

Innovation Score

46.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Callahan Cellular L.L.C.'s patent record in context - here's where to go next.

Callahan Cellular L.L.C.'s lead technology class is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication), 53.8% of its portfolio - see every assignee active in that class. Explore H04L
Ranked #4,413 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Callahan Cellular L.L.C. against 100% Speedlab, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.5/100 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.