Where does Union Tool Co. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Union Tool Co. ranks #38,089 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 Union Tool Co. hold?

Union Tool Co. holds 7 US utility patents granted between 2015 and 2023, spanning 11 technology areas.

What is Union Tool Co.'s Innovation Score?

Union Tool Co. has an Innovation Score of 36.2 out of 100 (top 47% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Union Tool Co. focus on?

Union Tool Co.'s top technology area is B23C (Milling) with 5 patents, ranking #35 of 227 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

Is Union Tool Co.'s patent grant rate increasing or decreasing?

Union Tool Co.'s recent grant velocity is -83% 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 Union Tool Co.'s patents?

Union Tool Co.'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 Union Tool Co. 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 Foreign Corporation

Union Tool Co.

USPTO PatentsView assignee record - 7 granted patents across 11 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: B23C (Milling).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Union ranks #38,089 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 11 technology areas.

#38,089
of 49,997 US assignees by volume: Top 47%
by Innovation Score (36.2/100): 17.7
avg claims per patent: -83%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38089 · Foreign Corporation #38,089 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,089/49,997
PHOTO-FINISH Ulvac Kiko
CPC-FOCUS B23C · 11 areas
INNOV-THIN 36.2/100
CLAIMS-RICH 17.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -83% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ulvac Kiko, Inc. (±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 Union’s 36.2 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 7.2 pts (20%) Velocity 6.7 pts (19%) Breadth 11.7 pts (32%) Claim depth 10.6 pts (29%)

Qualcomm Incorporated · highest

85
Union Tool · this assignee

36
3D Lighting… · lowest

7

What this shows Union's Innovation Score is 36.2/100 (top 47% 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 Union?

Each dot is one of Union’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). Union’s own 17.7 claims/patent is ABOVE the 11.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Union's grants concentrate

Union Tool Co. is a focused PatentsView assignee: 11 CPC subclasses with 71.4% of grants classified under B23C (Milling). Peak complete grant year is 2015 (2 grants) versus a trough of 1 in 2018. By volume, Union sits between Ulvac Kiko, Inc. and United States Government, AS Represented BY THE Administrator OF THE U.S. EPA.

Union's three-year grant acceleration

Union Tool Co. shows 1 grants in 2022–2024 against only 1 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.

Ulvac Kiko

7
Uniam

7
Unicyte EV

7
Uniken

7
Unistars

7
Unit 1 Gear

7
Unitech Zipper &…

7
United States Gov…

7
Union Tool ◀

7

What this shows Union holds 7 patents at rank #38,053, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Union

By rank, the assignees closest to #38,053 in granted patent volume.

Leaders in B23C (Milling)

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

Union's Innovation Score vs. every tracked assignee

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

36 Top 47% higher than 53% 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

Union Tool Co. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	28.6%
2017	2	28.6%
2018	1	14.3%
2019	1	14.3%
2023	1	14.3%

Which technologies does Union Tool Co. patent most?

B23C - Milling 5

Y10T - Technical Subjects Covered BY Former US Classification 3

A61B - DIAGNOSIS; SURGERY; Identification 2

B60W - Conjoint Control OF Vehicle Sub-units OF Different Type OR Different FUNCTION; Control Systems Specially Adapted FOR Hybrid VEHICLES; Road Vehicle Drive Control Systems FOR Purposes NOT Related TO THE Control OF A Particular Sub-unit 1

G08B - Signalling OR Calling SYSTEMS; Order TELEGRAPHS; Alarm Systems 1

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 1

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 1

B24D - Tools FOR Grinding, Buffing OR Sharpening 1

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 1

B28D - Working Stone OR Stone-like Materials 1

B23B - TURNING; Boring 1

Top 11 of 11 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

Union Tool Co.'s patent record in context - here's where to go next.

Union Tool Co.'s lead technology class is B23C (Milling), 71.4% of its portfolio - see every assignee active in that class. Explore B23C
Ranked #38,089 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Union Tool Co. against Ulvac Kiko, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.2/100 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.