Where does Dorf Ketal Chemicals (India) Private Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dorf Ketal Chemicals (India) Private Limited ranks #13,387 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 Dorf Ketal Chemicals (India) Private Limited hold?

Dorf Ketal Chemicals (India) Private Limited holds 22 US utility patents granted between 2015 and 2025, spanning 16 technology areas.

What is Dorf Ketal Chemicals (India) Private Limited's Innovation Score?

Dorf Ketal Chemicals (India) Private Limited has an Innovation Score of 39.2 out of 100 (top 39% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dorf Ketal Chemicals (India) Private Limited's patent grant rate increasing or decreasing?

Dorf Ketal Chemicals (India) Private Limited's recent grant velocity is -25% 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 Dorf Ketal Chemicals (India) Private Limited's patents?

Dorf Ketal Chemicals (India) Private Limited's patents average 18.1 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dorf Ketal Chemicals (India) Private Limited

Q: What technology areas does Dorf Ketal Chemicals (India) Private Limited focus on?

Dorf Ketal Chemicals (India) Private Limited's top technology area is C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes) with 14 patents, ranking #92 of 504 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

Q: How is the Dorf Ketal Chemicals (India) Private Limited 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 PatentsView assignee record - 22 granted patents across 16 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: C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dorf ranks #13,387 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 16 technology areas.

#13,387
of 49,997 US assignees by volume: Top 39%
by Innovation Score (39.2/100): 18.1
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13387 · Foreign Corporation #13,387 · 22 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 22 grants
MID-PACK #13,387/49,997
PHOTO-FINISH Delphian Systems
CPC-FOCUS C10G · 16 areas
INNOV-THIN 39.2/100
CLAIMS-RICH 18.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Delphian Systems, LLC (±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 Dorf’s 39.2 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 10.8 pts (28%) Velocity 3.3 pts (8%) Breadth 14.1 pts (36%) Claim depth 10.9 pts (28%)

Qualcomm Incorporated · highest

85
Dorf Ketal Chemicals… · this assignee

39
3D Lighting… · lowest

7

What this shows Dorf's Innovation Score is 39.2/100 (top 39% 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 Dorf?

Each dot is one of Dorf’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). Dorf’s own 18.1 claims/patent is ABOVE the 13.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dorf's grants concentrate

Dorf Ketal Chemicals (India) Private Limited is a focused PatentsView assignee: 16 CPC subclasses with 63.6% of grants classified under C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2015. By volume, Dorf sits between Delphian Systems, LLC and Eliiy Power Co., Ltd..

Dorf's three-year grant acceleration

Dorf Ketal Chemicals (India) Private Limited shows 4 grants in 2022–2024 against only 8 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.

Delphian Systems

22
Deutsches Elektro…

22
Dnanudge

22
Dollar Shave Club

22
Douglas Machine

22
Duplicent

22
Dwyer Instruments

22
Eliiy Power

22
Dorf Ketal Chemic… ◀

22

What this shows Dorf holds 22 patents at rank #13,390, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dorf

By rank, the assignees closest to #13,390 in granted patent volume.

Leaders in C10G (Cracking Hydrocarbon OILS)

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

Dorf's Innovation Score vs. every tracked assignee

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

39 Top 39% higher than 61% 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

Dorf Ketal Chemicals (India) Private Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.5%
2016	4	18.2%
2017	4	18.2%
2019	3	13.6%
2020	4	18.2%
2021	1	4.5%
2022	2	9.1%
2023	1	4.5%
2024	1	4.5%
2025partial year	1	4.5%

Which technologies does Dorf Ketal Chemicals (India) Private Limited patent most?

C10G - Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes 14

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 9

C07C - Acyclic OR Carbocyclic Compounds 9

B01D - Separation 9

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 5

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 4

C10L - Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lighters 4

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 2

C10B - Destructive Distillation OF Carbonaceous Materials FOR Production OF GAS, Coke, TAR, OR Similar Materials 2

C08L - Compositions OF Macromolecular Compounds 1

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

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

Top 15 of 16 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

Dorf Ketal Chemicals (India) Private Limited's patent record in context - here's where to go next.

Dorf Ketal Chemicals (India) Private Limited's lead technology class is C10G (Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GAS), 63.6% of its portfolio - see every assignee active in that class. Explore C10G
Ranked #13,387 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dorf Ketal Chemicals (India) Private Limited against Delphian Systems, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.2/100 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.