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

According to USPTO PatentsView (2015–2025 granted utility patents), Baldwin Filters, Inc. ranks #5,428 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 Baldwin Filters, Inc. hold?

Baldwin Filters, Inc. holds 63 US utility patents granted between 2015 and 2025, spanning 10 technology areas.

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

Baldwin Filters, Inc. has an Innovation Score of 42.4 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Baldwin Filters, Inc. focus on?

Baldwin Filters, Inc.'s top technology area is B01D (Separation) with 53 patents, ranking #81 of 3,536 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

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

Baldwin Filters, Inc.'s recent grant velocity is -55% 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 Baldwin Filters, Inc.'s patents?

Baldwin Filters, Inc.'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 Baldwin 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

Baldwin Filters, Inc.

USPTO PatentsView assignee record - 63 granted patents across 10 technology areas, recorded in grant years 2015–2025. 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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The verdict

According to USPTO PatentsView, Baldwin ranks #5,428 of 49,997 tracked US assignees by granted-patent volume, with 63 patents across 10 technology areas.

#5,428
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.4/100): 19.2
avg claims per patent: -55%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5428 · US Corporation #5,428 · 63 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 63 grants
UPPER-Q #5,428/49,997
PHOTO-FINISH Affectiva
CPC-FOCUS B01D · 10 areas
INNOV-PAR 42.4/100
CLAIMS-RICH 19.2 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -55% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Affectiva, 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 Baldwin’s 42.4 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 14.4 pts (34%) Velocity 5.3 pts (13%) Breadth 11.2 pts (26%) Claim depth 11.5 pts (27%)

Qualcomm Incorporated · highest

85
tooz · near

42
Baldwin Filters · this assignee

42
Fondation B-com · near

42
Freezio · near

42
Phoenix Contact… · near

42
3D Lighting… · lowest

7

What this shows Baldwin's Innovation Score is 42.4/100 (top 31% 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 Baldwin?

Each dot is one of Baldwin’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). Baldwin’s own 19.2 claims/patent is ABOVE the 14.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Baldwin's grants concentrate

Baldwin Filters, Inc. is a focused PatentsView assignee: 10 CPC subclasses with 84.1% of grants classified under B01D (Separation). Peak complete grant year is 2018 (12 grants) versus a trough of 2 in 2023. By volume, Baldwin sits between Affectiva, Inc. and Century Technology (Shenzhen) Corporation Limited.

Baldwin's three-year grant acceleration

Baldwin Filters, Inc. shows 12 grants in 2022–2024 against only 15 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.

Affectiva

63
Agfa-gevaert

63
Ansell

63
BGI Shenzhen

63
Brewer Science

63
Clearpath Robotics

63
Crompton Technolo…

63
Century Technolog…

63
Baldwin Filters ◀

63

What this shows Baldwin holds 63 patents at rank #5,429, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Baldwin

By rank, the assignees closest to #5,429 in granted patent volume.

Leaders in B01D (Separation)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Baldwin, neither rank-band nor same-CPC leaders (those blocks stay above). In B01D (Separation), Baldwin ranks #81 of 3,536 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Phoenix Contact Development and Manufacturing, Inc. 42 Fondation B-com 42 Freezio AG 42 tooz technologies GmbH 42

Similar claim depth

Nearest assignees by average claims per patent (19.2 here).

O2Micro Inc. 19.2 avg RingCentral, Inc. 19.2 avg Exelis Inc. 19.2 avg Titan Medical Inc. 19.2 avg

Baldwin's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2015–2025

Grants by year

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

View data table

Baldwin Filters, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	12.7%
2016	3	4.8%
2017	11	17.5%
2018	12	19.0%
2019	8	12.7%
2020	4	6.3%
2021	3	4.8%
2022	6	9.5%
2023	2	3.2%
2024	4	6.3%
2025partial year	2	3.2%

Which technologies does Baldwin Filters, Inc. patent most?

B01D - Separation 53

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 13

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

Y10T - Technical Subjects Covered BY Former US Classification 2

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 2

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 1

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 1

F16J - Pistons ; CYLINDERS; Sealings 1

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 1

Top 10 of 10 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

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

Baldwin Filters, Inc.'s lead technology class is B01D (Separation), 84.1% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #5,428 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Baldwin Filters, Inc. against Affectiva, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.4/100 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.