Where does Dari-tech, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dari-tech, Inc. ranks #16,722 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 Dari-tech, Inc. hold?

Dari-tech, Inc. holds 17 US utility patents granted between 2015 and 2024, spanning 17 technology areas.

What is Dari-tech, Inc.'s Innovation Score?

Dari-tech, Inc. has an Innovation Score of 38.5 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dari-tech, Inc. focus on?

Dari-tech, Inc.'s top technology area is B01D (Separation) with 12 patents, ranking #390 of 3,536 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Dari-tech, Inc.'s patent grant rate increasing or decreasing?

Dari-tech, Inc.'s recent grant velocity is +140% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Dari-tech, Inc.'s patents?

Dari-tech, Inc.'s patents average 18.4 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 Dari-tech, 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

Dari-tech, Inc.

USPTO PatentsView assignee record - 17 granted patents across 17 technology areas, recorded in grant years 2015–2024. 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, Dari-tech ranks #16,722 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 17 technology areas.

#16,722
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.5/100): 18.4
avg claims per patent: +140%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16722 · US Corporation #16,722 · 17 grants

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

GRANTS-MICRO 17 grants
MID-PACK #16,722/49,997
PHOTO-FINISH Crucell Holland B V
CPC-FOCUS B01D · 17 areas
INNOV-THIN 38.5/100
CLAIMS-RICH 18.4 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +140% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Crucell Holland B.V. (±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 Dari-tech’s 38.5 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 10.0 pts (26%) Velocity 3.0 pts (8%) Breadth 14.6 pts (38%) Claim depth 11.0 pts (28%)

Qualcomm Incorporated · highest

85
Dari-tech · this assignee

39
3D Lighting… · lowest

7

What this shows Dari-tech's Innovation Score is 38.5/100 (top 40% 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 Dari-tech?

Each dot is one of Dari-tech’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). Dari-tech’s own 18.4 claims/patent is ABOVE the 12.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dari-tech's grants concentrate

Dari-tech, Inc. is a focused PatentsView assignee: 17 CPC subclasses with 70.6% of grants classified under B01D (Separation). Peak complete grant year is 2020 (6 grants) versus a trough of 1 in 2015. By volume, Dari-tech sits between Crucell Holland B.V. and Delta PDS Co., Ltd..

Dari-tech's three-year grant acceleration

Dari-tech, Inc. shows 4 grants in 2022–2024 against only 9 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.

Crucell Holland B…

17
Custom Medical Ap…

17
Cyemptive

17
D4D

17
DC Comics

17
DD Karma

17
Decor Grates Inco…

17
Delta PDS

17
Dari-tech ◀

17

What this shows Dari-tech holds 17 patents at rank #16,721, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dari-tech

By rank, the assignees closest to #16,721 in granted patent volume.

Leaders in B01D (Separation)

Other assignees with the most granted patents in Dari-tech's primary technology class.

Dari-tech's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2015–2024

Grants by year

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

View data table

Dari-tech, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	5.9%
2017	3	17.6%
2019	1	5.9%
2020	6	35.3%
2021	2	11.8%
2022	2	11.8%
2023	1	5.9%
2024	1	5.9%

Which technologies does Dari-tech, Inc. patent most?

B01D - Separation 12

Y02A - Technologies FOR Adaptation TO Climate Change 7

C05F - Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse 6

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 6

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 6

A01C - PLANTING; SOWING; Fertilising 5

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 5

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 4

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 4

C05C - Nitrogenous Fertilisers 3

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 3

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 3

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 2

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 2

A01J - Manufacture OF Dairy Products 2

Top 15 of 17 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

Dari-tech, Inc.'s patent record in context - here's where to go next.

Dari-tech, Inc.'s lead technology class is B01D (Separation), 70.6% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #16,722 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dari-tech, Inc. against Crucell Holland B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.5/100 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.