Where does Hamilton Caster & Manufacturing Company rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hamilton Caster & Manufacturing Company ranks #40,606 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 Hamilton Caster & Manufacturing Company hold?

Hamilton Caster & Manufacturing Company holds 6 US utility patents granted between 2015 and 2019, spanning 5 technology areas.

What is Hamilton Caster & Manufacturing Company's Innovation Score?

Hamilton Caster & Manufacturing Company has an Innovation Score of 26.1 out of 100 (19th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hamilton Caster & Manufacturing Company focus on?

Hamilton Caster & Manufacturing Company's top technology area is B60B (Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion) with 6 patents, ranking #65 of 463 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is Hamilton Caster & Manufacturing Company's patent grant rate increasing or decreasing?

Hamilton Caster & Manufacturing Company's recent grant velocity is -100% 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 Hamilton Caster & Manufacturing Company's patents?

Hamilton Caster & Manufacturing Company's patents average 19.2 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 Hamilton Caster & Manufacturing Company 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

Hamilton Caster & Manufacturing Company

USPTO PatentsView assignee record - 6 granted patents across 5 technology areas, recorded in grant years 2015–2019. 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: B60B (Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hamilton ranks #40,606 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 5 technology areas.

#40,606
of 49,997 US assignees by volume: 19th percentile
by Innovation Score (26.1/100): 19.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R40606 · US Corporation #40,606 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #40,606/49,997
PHOTO-FINISH Halia Therapeutics
CPC-NARROW B60B · 5 areas
INNOV-THIN 26.1/100
CLAIMS-RICH 19.2 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Halia Therapeutics, 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 Hamilton’s 26.1 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 6.7 pts (26%) Velocity 0.0 pts (0%) Breadth 7.9 pts (30%) Claim depth 11.5 pts (44%)

Qualcomm Incorporated · highest

85
Hamilton Caster &… · this assignee

26
3D Lighting… · lowest

7

What this shows Hamilton's Innovation Score is 26.1/100 (19th percentile 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 Hamilton?

Each dot is one of Hamilton’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). Hamilton’s own 19.2 claims/patent is ABOVE the 12.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hamilton's grants concentrate

Hamilton Caster & Manufacturing Company is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under B60B (Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion). Peak complete grant year is 2015 (2 grants) versus a trough of 1 in 2016. By volume, Hamilton sits between Halia Therapeutics, Inc. and Handelskwekerijubink BV.

Halia Therapeutics

6
Hall Fabrication

6
Hamamatsu Univers…

6
Hamfop

6
Hamskea Archery S…

6
Hamworthy Combust…

6
Handeholder Produ…

6
Handelskwekerijub…

6
Hamilton Caster &… ◀

6

What this shows Hamilton holds 6 patents at rank #40,700, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hamilton

By rank, the assignees closest to #40,700 in granted patent volume.

Leaders in B60B (Vehicle Wheels)

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

Hamilton's Innovation Score vs. every tracked assignee

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

26 19th percentile higher than 19% 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 · 2015–2019

Grants by year

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

View data table

Hamilton Caster & Manufacturing Company patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	33.3%
2016	1	16.7%
2017	1	16.7%
2019	2	33.3%

Which technologies does Hamilton Caster & Manufacturing Company patent most?

B60B - Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion 6

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 4

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology 1

Top 5 of 5 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

Hamilton Caster & Manufacturing Company's patent record in context - here's where to go next.

Hamilton Caster & Manufacturing Company's lead technology class is B60B (Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion), 100% of its portfolio - see every assignee active in that class. Explore B60B
Ranked #40,606 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hamilton Caster & Manufacturing Company against Halia Therapeutics, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.1/100 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.