Where does Brunn Air Systems, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Brunn Air Systems, Inc. ranks #28,302 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 Brunn Air Systems, Inc. hold?

Brunn Air Systems, Inc. holds 9 US utility patents granted between 2017 and 2019, spanning 8 technology areas.

What is Brunn Air Systems, Inc.'s Innovation Score?

Brunn Air Systems, Inc. has an Innovation Score of 27.1 out of 100 (22nd 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 Brunn Air Systems, Inc. focus on?

Brunn Air Systems, Inc.'s top technology area is D21G (CALENDERS; Accessories FOR Paper-making Machines) with 9 patents, ranking #5 of 46 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is Brunn Air Systems, Inc.'s patent grant rate increasing or decreasing?

Brunn Air Systems, Inc.'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 Brunn Air Systems, Inc.'s patents?

Brunn Air Systems, Inc.'s patents average 15.2 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 Brunn Air Systems, 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

Brunn Air Systems, Inc.

USPTO PatentsView assignee record - 9 granted patents across 8 technology areas, recorded in grant years 2017–2019. 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: D21G (CALENDERS; Accessories FOR Paper-making Machines).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Brunn ranks #28,302 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 8 technology areas.

#28,302
of 49,997 US assignees by volume: 22nd percentile
by Innovation Score (27.1/100): 15.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28302 · US Corporation #28,302 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,302/49,997
PHOTO-FINISH Brandenburger…
CPC-NARROW D21G · 8 areas
INNOV-THIN 27.1/100
CLAIMS-RICH 15.2 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Brandenburger Patentverwertung GbR (±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 Brunn’s 27.1 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 8.0 pts (30%) Velocity 0.0 pts (0%) Breadth 10.0 pts (37%) Claim depth 9.1 pts (34%)

Qualcomm Incorporated · highest

85
Brunn Air Systems · this assignee

27
3D Lighting… · lowest

7

What this shows Brunn's Innovation Score is 27.1/100 (22nd 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 Brunn?

Each dot is one of Brunn’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). Brunn’s own 15.2 claims/patent is ABOVE the 13.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Brunn's grants concentrate

Brunn Air Systems, Inc. is a focused PatentsView assignee: 8 CPC subclasses with 100% of grants classified under D21G (CALENDERS; Accessories FOR Paper-making Machines). Peak complete grant year is 2019 (6 grants) versus a trough of 1 in 2018. By volume, Brunn sits between Brandenburger Patentverwertung GbR and Bugatone Ltd..

Brandenburger Pat…

9
Bridge Pharma

9
Bright Cloud Inte…

9
British Airways

9
Bryan Family Ente…

9
Bucher Hydraulics

9
Buff and Shine Mfg

9
Bugatone

9
Brunn Air Systems ◀

9

What this shows Brunn holds 9 patents at rank #28,307, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Brunn

By rank, the assignees closest to #28,307 in granted patent volume.

Leaders in D21G (Calenders)

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

Brunn's Innovation Score vs. every tracked assignee

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

27 22nd percentile higher than 22% 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 · 2017–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Brunn Air Systems, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	2	22.2%
2018	1	11.1%
2019	6	66.7%

Which technologies does Brunn Air Systems, Inc. patent most?

D21G - CALENDERS; Accessories FOR Paper-making Machines 9

D21F - Paper-making MACHINES; Methods OF Producing Paper Thereon 8

B01D - Separation 1

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

A47L - Domestic Washing OR Cleaning ; Suction Cleaners IN General 1

D21B - Fibrous RAW Materials OR Their Mechanical Treatment 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

D21C - Production OF Cellulose BY Removing Non-cellulose Substances From Cellulose-containing MATERIALS; Regeneration OF Pulping LIQUORS; Apparatus Therefor 1

Top 8 of 8 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

Brunn Air Systems, Inc.'s patent record in context - here's where to go next.

Brunn Air Systems, Inc.'s lead technology class is D21G (CALENDERS; Accessories FOR Paper-making Machines), 100% of its portfolio - see every assignee active in that class. Explore D21G
Ranked #28,302 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Brunn Air Systems, Inc. against Brandenburger Patentverwertung GbR, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.1/100 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.