USPTO 2015–2025 USPTO PatentsView US Corporation

Dri-steem Corporation

USPTO PatentsView assignee record - 15 granted patents across 20 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.3

Avg claims per patent

-50%

5-year filing velocity

The verdict

Dri-steem holds 15 US patents across 20 technology areas, rank #18,537 of 50,000 tracked assignees.

#18,537
of 50,000 US assignees by volume: Top 40%
by Innovation Score (38.8/100): 11.3
avg claims per patent: -50%
filing velocity, last 5 yrs

Portfolio overview

Dri-steem Corporation has been granted 15 US utility patents between 2015 and 2024, placing Dri-steem Corporation at rank #18,537 across all assignees tracked by PlainPatent. This portfolio spans 20 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.3 claims per patent with primary concentration in F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING). As a US Corporation, Dri-steem Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Dri-steem sits between DNA Script (15 patents, rank #18,533) and Dsi-iti, Inc. (15 patents, rank #18,541) - the closest US assignees by grant volume. The composite Innovation Score of 38.8/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 5 grants, compared with 10 in the 2015–2019 window, a -50% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Dri-steem Corporation's 11.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 20 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Dri-steem Corporation against peers pursuing similar technology classes.

DNA Script

15
Dongguan Yulong T…

15
Doselogix

15
DPIX

15
Drillmec S P A

15
DS Services OF Am…

15
DSCG Solutions

15
Dsi-iti

15
Dri-steem ◀

15

What this shows Dri-steem holds 15 patents at rank #18,537, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dri-steem

By rank, the assignees closest to #18,537 in granted patent volume.

Leaders in F24F (Air-conditioning)

Other assignees with the most granted patents in Dri-steem's primary technology class.

Dri-steem's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% of 50,000 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 · 2015–2024

Grants by year

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

View data table

Dri-steem Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	13.3%
2016	2	13.3%
2017	4	26.7%
2018	1	6.7%
2019	1	6.7%
2020	2	13.3%
2022	2	13.3%
2024	1	6.7%

Which technologies does Dri-steem Corporation patent most?

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 15

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 8

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 5

F22B - METHODS OF STEAM GENERATION; STEAM BOILERS 4

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 3

F28C - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION 3

G05D - SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 3

F25D - REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR 3

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 3

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 3

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 2

F23D - BURNERS 2

F22D - PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS 2

F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN ; A CARRIER GAS OR; AIR 2

Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS 1

Top 15 of 20 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#18,537

Across all tracked assignees

Innovation Score

38.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Dri-steem Corporation hold?

Dri-steem Corporation holds 15 US granted patents filed between 2015 and 2024, spanning 20 technology areas.

What is Dri-steem Corporation's Innovation Score?

Dri-steem Corporation has an Innovation Score of 38.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dri-steem Corporation focus on?

Dri-steem Corporation's top technology area is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING) with 15 patents. The company has filed patents in 20 CPC subclasses total.

Is Dri-steem Corporation's patent filing rate increasing or decreasing?

Dri-steem Corporation's recent filing velocity is -50% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Dri-steem Corporation's patents?

Dri-steem Corporation's patents average 11.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Dri-steem Corporation 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.

How to use this portfolio

Dri-steem's 15 grants land it in the top 40% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Dri-steem ranks #18,537 of 50,000. Top 50 holders
Most of this portfolio concentrates in F24F - see who else leads that technology area. F24F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.