Overall rank by patents
#11,588
of 50,000 tracked assignees
USPTO PatentsView assignee record - 26 granted patents across 9 technology areas, recorded in grant years 2015–2017. 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: H04M (TELEPHONIC COMMUNICATION).
The verdict
According to USPTO PatentsView, Captioncall ranks #11,588 of 50,000 tracked US assignees by granted-patent volume, with 26 patents across 9 technology areas.
Captioncall, Llc has been granted 26 US utility patents between 2015 and 2017, placing Captioncall, Llc at #11,588 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.7 claims per patent with primary concentration in H04M (TELEPHONIC COMMUNICATION). As a US Corporation, Captioncall, Llc is one of the more focused assignees in the PatentsView dataset. By volume, Captioncall sits between China International Marine Containers (group) Co., Ltd. (26 patents, rank #11,590) and Centre Firearms Co., Inc. (26 patents, rank #11,598) - the closest US assignees by grant volume. The composite Innovation Score of 29.6/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 0 grants, compared with 26 in the 2015–2019 window, a -100% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The US Corporation classification provides context for the assignee record, not a conclusion about its business strategy.
Claim depth and technology breadth describe this aggregate record. Captioncall, Llc's 12.7 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 9 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
CHINA INTERNATIONAL MARINE CONTAINERS (GROUP) CO., LTD.
26 patents
CHINA TELECOM CORPORATION LIMITED
26 patents
CNEX LABS, Inc.
26 patents
CPC CORPORATION, TAIWAN
26 patents
Cardiac Assist Holdings, LLC
26 patents
Caroma Industries Limited
26 patents
Caterpillar Underground Mining Pty Ltd.
26 patents
Centre Firearms Co., Inc.
26 patents
CaptionCall, LLC
26 patents
What this shows Captioncall holds 26 patents at rank #11,594, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #11,594 in granted patent volume.
Other assignees with the most granted patents in Captioncall's primary technology class.
Captioncall's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
30 Top 69% higher than 31% 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
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 6 | 23.1% |
| 2016 | 11 | 42.3% |
| 2017 | 9 | 34.6% |
Top 9 of 9 technology areas
Historical grant data only; it does not rate legal strength or current strategy.
Overall rank by patents
#11,588
of 50,000 tracked assignees
29.6 out of 100
How to use this portfolio
Captioncall's 26 grants land it in the top 69% by Innovation Score, but volume alone doesn't tell you where the strength sits.
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.
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.