Where does Hubb Filters, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hubb Filters, Inc. ranks #35,744 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 Hubb Filters, Inc. hold?

Hubb Filters, Inc. holds 7 US utility patents granted between 2016 and 2023, spanning 3 technology areas.

What is Hubb Filters, Inc.'s Innovation Score?

Hubb Filters, Inc. has an Innovation Score of 24.4 out of 100 (15th 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 Hubb Filters, Inc. focus on?

Hubb Filters, Inc.'s top technology area is B01D (Separation) with 7 patents, ranking #685 of 3,536 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Hubb Filters, Inc.'s patent grant rate increasing or decreasing?

Hubb Filters, Inc.'s recent grant velocity is +33% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Hubb Filters, Inc.'s patents?

Hubb Filters, Inc.'s patents average 14.9 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 Hubb Filters, 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

Hubb Filters, Inc.

USPTO PatentsView assignee record - 7 granted patents across 3 technology areas, recorded in grant years 2016–2023. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hubb ranks #35,744 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 3 technology areas.

#35,744
of 49,997 US assignees by volume: 15th percentile
by Innovation Score (24.4/100): 14.9
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35744 · US Corporation #35,744 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #35,744/49,997
PHOTO-FINISH Hougen Manufacturing
CPC-NARROW B01D · 3 areas
INNOV-THIN 24.4/100
CLAIMS-RICH 14.9 claims/avg
TYPE-USCORP US Corporation
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hougen Manufacturing, 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 Hubb’s 24.4 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 (30%) Velocity 2.2 pts (9%) Breadth 6.1 pts (25%) Claim depth 8.9 pts (36%)

Qualcomm Incorporated · highest

85
Hubb Filters · this assignee

24
3D Lighting… · lowest

7

What this shows Hubb's Innovation Score is 24.4/100 (15th 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 Hubb?

Each dot is one of Hubb’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). Hubb’s own 14.9 claims/patent is ABOVE the 10.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hubb's grants concentrate

Hubb Filters, Inc. is a focused PatentsView assignee: 3 CPC subclasses with 100% of grants classified under B01D (Separation). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2016. By volume, Hubb sits between Hougen Manufacturing, Inc. and Hunan Lianke Technology Co., Ltd.

Hubb's three-year grant acceleration

Hubb Filters, Inc. shows 1 grants in 2022–2024 against only 3 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.

Hougen Manufactur…

7
House of Forgings

7
Hoyos Labs IP

7
Huawei Digital (C…

7
Hudson Bay Holdin…

7
Huizhou du du Pet…

7
Humanising Autono…

7
Hunan Lianke Tech…

7
Hubb Filters ◀

7

What this shows Hubb holds 7 patents at rank #35,755, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hubb

By rank, the assignees closest to #35,755 in granted patent volume.

Leaders in B01D (Separation)

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

Hubb's Innovation Score vs. every tracked assignee

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

24 15th percentile higher than 15% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Hubb Filters, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	14.3%
2018	2	28.6%
2020	1	14.3%
2021	2	28.6%
2023	1	14.3%

Which technologies does Hubb Filters, Inc. patent most?

B01D - Separation 7

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 4

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 3

Top 3 of 3 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

Hubb Filters, Inc.'s patent record in context - here's where to go next.

Hubb Filters, Inc.'s lead technology class is B01D (Separation), 100% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #35,744 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hubb Filters, Inc. against Hougen Manufacturing, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.4/100 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.