Where does Hudson Technologies, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hudson Technologies, Inc. ranks #29,007 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 Hudson Technologies, Inc. hold?

Hudson Technologies, Inc. holds 9 US utility patents granted between 2015 and 2020, spanning 11 technology areas.

What is Hudson Technologies, Inc.'s Innovation Score?

Hudson Technologies, Inc. has an Innovation Score of 31.8 out of 100 (39th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hudson Technologies, Inc.'s patent grant rate increasing or decreasing?

Hudson Technologies, Inc.'s recent grant velocity is -87% 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 Hudson Technologies, Inc.'s patents?

Hudson Technologies, Inc.'s patents average 20.1 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 Hudson Technologies, Inc. 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

Hudson Technologies, Inc.

Q: What technology areas does Hudson Technologies, Inc. focus on?

Hudson Technologies, Inc.'s top technology area is F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems) with 9 patents, ranking #110 of 704 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 9 granted patents across 11 technology areas, recorded in grant years 2015–2020. 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: F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hudson ranks #29,007 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 11 technology areas.

#29,007
of 49,997 US assignees by volume: 39th percentile
by Innovation Score (31.8/100): 20.1
avg claims per patent: -87%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R29007 · US Corporation #29,007 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #29,007/49,997
PHOTO-FINISH Howso Incorporated
CPC-FOCUS F25B · 11 areas
INNOV-THIN 31.8/100
CLAIMS-DENSE 20.1 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -87% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Howso Incorporated (±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 Hudson’s 31.8 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 8.0 pts (25%) Velocity 0.0 pts (0%) Breadth 11.7 pts (37%) Claim depth 12.1 pts (38%)

Qualcomm Incorporated · highest

85
Hudson · this assignee

32
3D Lighting… · lowest

7

What this shows Hudson's Innovation Score is 31.8/100 (39th 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 Hudson?

Each dot is one of Hudson’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). Hudson’s own 20.1 claims/patent is ABOVE the 13.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hudson's grants concentrate

Hudson Technologies, Inc. is a focused PatentsView assignee: 11 CPC subclasses with 100% of grants classified under F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2015. By volume, Hudson sits between Howso Incorporated and Humavox, Ltd..

Howso Incorporated

9
Hubbell Power Sys…

9
Hubei Fangnuo Tec…

9
Hudson Products

9
Hueck Folien Gese…

9
Huiyang Allan Pla…

9
Human Matrix Scie…

9
Humavox

9
Hudson ◀

9

What this shows Hudson holds 9 patents at rank #29,005, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hudson

By rank, the assignees closest to #29,005 in granted patent volume.

Leaders in F25B (Refrigeration Machines)

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

Hudson's Innovation Score vs. every tracked assignee

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

32 39th percentile higher than 39% 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 · 2015–2020

Grants by year

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

View data table

Hudson Technologies, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	11.1%
2016	3	33.3%
2018	2	22.2%
2019	2	22.2%
2020	1	11.1%

Which technologies does Hudson Technologies, Inc. patent most?

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 9

C10M - Lubricating Compositions ; USE OF Chemical Substances Either Alone OR AS Lubricating Ingredients IN A Lubricating Composition 3

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 3

C10N - Indexing Scheme Associated With Subclass C10m Relating TO Lubricating Compositions 3

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 3

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 3

G06F - Electric Digital Data Processing 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 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

Hudson Technologies, Inc.'s patent record in context - here's where to go next.

Hudson Technologies, Inc.'s lead technology class is F25B (Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems), 100% of its portfolio - see every assignee active in that class. Explore F25B
Ranked #29,007 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hudson Technologies, Inc. against Howso Incorporated, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 31.8/100 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.