PlainPatent
USPTO 2015–2025 USPTO PatentsView US Corporation

Accuray Incorporated

USPTO PatentsView assignee record - 121 granted patents across 20 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61N (ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY).

Explore the portfolio See the ranking
121
Total patents granted
20
CPC technology areas
20.2
Avg claims per patent
+88%
5-year filing velocity

The verdict

Accuray holds 121 US patents across 20 technology areas, rank #3,111 of 50,000 tracked assignees.

#3,111
of 50,000 US assignees by volume
Top 10%
by Innovation Score (52.6/100)
20.2
avg claims per patent
+88%
filing velocity, last 5 yrs

Portfolio overview

Accuray Incorporated has been granted 121 US utility patents between 2015 and 2025, placing Accuray Incorporated at rank #3,111 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 20.2 claims per patent with primary concentration in A61N (ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY). As a US Corporation, Accuray Incorporated is one of the more focused assignees in the PatentsView dataset. By volume, Accuray sits between Smartsky Networks Llc (122 patents, rank #3,107) and FUJI Machine MFG. Co., Ltd. (121 patents, rank #3,115) - the closest US assignees by grant volume. The composite Innovation Score of 52.6/100 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 79 grants, compared with 42 in the 2015–2019 window, a +88% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Accuray Incorporated's 20.2 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while a multi-domain presence across 20 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Accuray Incorporated against peers pursuing similar technology classes.

Who files at Accuray's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Accuray holds 121 patents at rank #3,111, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Accuray

By rank, the assignees closest to #3,111 in granted patent volume.

Leaders in A61N (Electrotherapy)

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

Accuray's Innovation Score vs. every tracked assignee

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

53 Top 10% higher than 90% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). This entry sits in this band. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

0510152025 20152016201720182019202020212022202320242025 4
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
Accuray Incorporated patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 9 7.4%
2016 11 9.1%
2017 4 3.3%
2018 9 7.4%
2019 9 7.4%
2020 19 15.7%
2021 10 8.3%
2022 22 18.2%
2023 16 13.2%
2024 8 6.6%
2025 4 3.3%

Which technologies does Accuray Incorporated patent most?

Top 15 of 20 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Complex
Velocity Accelerating

Where it ranks

Overall rank by patents

#3,111

Across all tracked assignees

Innovation Score

52.6 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 Accuray Incorporated hold?
Accuray Incorporated holds 121 US granted patents filed between 2015 and 2025, spanning 20 technology areas.
What is Accuray Incorporated's Innovation Score?
Accuray Incorporated has an Innovation Score of 52.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does Accuray Incorporated focus on?
Accuray Incorporated's top technology area is A61N (ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY) with 111 patents. The company has filed patents in 20 CPC subclasses total.
Is Accuray Incorporated's patent filing rate increasing or decreasing?
Accuray Incorporated's recent filing velocity is +88% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for Accuray Incorporated's patents?
Accuray Incorporated's patents average 20.2 claims each. This indicates complex, broadly scoped patents that are harder for competitors to design around.
How is the Accuray Incorporated 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

Accuray's 121 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 - Accuray ranks #3,111 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in A61N - see who else leads that technology area. A61N 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

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.