Overall rank by patents
#8,145
of 50,000 tracked assignees
USPTO PatentsView assignee record - 40 granted patents across 17 technology areas, recorded in grant years 2020–2025. 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: Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION).
The verdict
According to USPTO PatentsView, Volta ranks #8,145 of 50,000 tracked US assignees by granted-patent volume, with 40 patents across 17 technology areas.
Volta Charging, Llc has been granted 40 US utility patents between 2020 and 2025, placing Volta Charging, Llc at #8,145 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 17 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.9 claims per patent with primary concentration in Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION). As a US Corporation, Volta Charging, Llc is one of the more focused assignees in the PatentsView dataset. By volume, Volta sits between Vasona Networks, Inc. (40 patents, rank #8,139) and Zepp, Inc. (40 patents, rank #8,147) - the closest US assignees by grant volume. The composite Innovation Score of 43.1/100 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. Historical data spans 2020 through 2025, with 40 total grants over that period. 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. Volta Charging, Llc's 6.9 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 17 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 ◀
Vasona Networks, Inc.
40 patents
Vector Products, Inc.
40 patents
Velocys, Inc.
40 patents
Veran Medical Technologies, Inc.
40 patents
Walter R. Tucker Enterprises, Ltd
40 patents
X-Card Holdings, LLC
40 patents
ZOJIRUSHI CORPORATION
40 patents
Zepp, Inc.
40 patents
Volta Charging, LLC
40 patents
What this shows Volta holds 40 patents at rank #8,143, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #8,143 in granted patent volume.
Other assignees with the most granted patents in Volta's primary technology class.
Volta's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
43 Top 29% higher than 71% 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 2020–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2020 | 7 | 17.5% |
| 2021 | 4 | 10.0% |
| 2022 | 7 | 17.5% |
| 2023 | 5 | 12.5% |
| 2024 | 7 | 17.5% |
| 2025partial year | 10 | 25.0% |
Top 15 of 17 technology areas
Historical grant data only; it does not rate legal strength or current strategy.
Overall rank by patents
#8,145
of 50,000 tracked assignees
43.1 out of 100
How to use this portfolio
Volta's 40 grants land it in the top 29% 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.