USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sri Lanka Institute Of Nanotechnology (pvt) Ltd.

USPTO PatentsView assignee record - 7 granted patents across 12 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D06M (TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

13.3

Avg claims per patent

-83%

5-year filing velocity

The verdict

Sri holds 7 US patents across 12 technology areas, rank #37,706 of 50,000 tracked assignees.

#37,706
of 50,000 US assignees by volume: Top 76%
by Innovation Score (27.4/100): 13.3
avg claims per patent: -83%
filing velocity, last 5 yrs

Portfolio overview

Sri Lanka Institute Of Nanotechnology (pvt) Ltd. has been granted 7 US utility patents between 2015 and 2021, placing Sri Lanka Institute Of Nanotechnology (pvt) Ltd. at rank #37,706 across all assignees tracked by PlainPatent. This portfolio spans 12 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.3 claims per patent with primary concentration in D06M (TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS). As a Foreign Corporation, Sri Lanka Institute Of Nanotechnology (pvt) Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Sri sits between Spinex Tec Llc (7 patents, rank #37,702) and Stack AV Co. (7 patents, rank #37,710) - the closest US assignees by grant volume. The composite Innovation Score of 27.4/100 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 1 grants, compared with 6 in the 2015–2019 window, a -83% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s 13.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 12 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sri Lanka Institute Of Nanotechnology (pvt) Ltd. against peers pursuing similar technology classes.

Spinex Tec

7
Spoonread

7
Sports Medicine S…

7
Spudnik Equipment

7
St Joseph Health…

7
St Vincent's Hosp…

7
Stabulum Group

7
Stack AV

7
Sri Lanka Institu… ◀

7

What this shows Sri holds 7 patents at rank #37,706, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sri

By rank, the assignees closest to #37,706 in granted patent volume.

Leaders in D06M (Treatment)

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

Sri's Innovation Score vs. every tracked assignee

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

27 Top 76% higher than 24% 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 · 2015–2021

Grants by year

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

View data table

Sri Lanka Institute Of Nanotechnology (pvt) Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2019	5	71.4%
2021	1	14.3%

Which technologies does Sri Lanka Institute Of Nanotechnology (pvt) Ltd. patent most?

D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS 2

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 1

B01F - MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING 1

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

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 1

A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES ; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1

A41D - OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES 1

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

Top 12 of 12 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#37,706

Across all tracked assignees

Innovation Score

27.4 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 Sri Lanka Institute Of Nanotechnology (pvt) Ltd. hold?

Sri Lanka Institute Of Nanotechnology (pvt) Ltd. holds 7 US granted patents filed between 2015 and 2021, spanning 12 technology areas.

What is Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s Innovation Score?

Sri Lanka Institute Of Nanotechnology (pvt) Ltd. has an Innovation Score of 27.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sri Lanka Institute Of Nanotechnology (pvt) Ltd. focus on?

Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s top technology area is D06M (TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS) with 2 patents. The company has filed patents in 12 CPC subclasses total.

Is Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s patent filing rate increasing or decreasing?

Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s recent filing velocity is -83% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s patents?

Sri Lanka Institute Of Nanotechnology (pvt) Ltd.'s patents average 13.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the Sri Lanka Institute Of Nanotechnology (pvt) Ltd. 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

Sri's 7 grants land it in the top 76% 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 - Sri ranks #37,706 of 50,000. Top 50 holders
Most of this portfolio concentrates in D06M - see who else leads that technology area. D06M 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.