Where does BK Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), BK Ltd. ranks #45,232 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 BK Ltd. hold?

BK Ltd. holds 5 US utility patents granted between 2016 and 2023, spanning 15 technology areas.

What is BK Ltd.'s Innovation Score?

BK Ltd. has an Innovation Score of 37.0 out of 100 (top 45% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does BK Ltd. focus on?

BK Ltd.'s top technology area is C05F (Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse) with 2 patents, ranking #46 of 134 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is BK Ltd.'s patent grant rate increasing or decreasing?

BK Ltd.'s recent grant velocity is +50% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for BK Ltd.'s patents?

BK Ltd.'s patents average 17.4 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 BK 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

BK Ltd.

USPTO PatentsView assignee record - 5 granted patents across 15 technology areas, recorded in grant years 2016–2023. 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: C05F (Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, BK ranks #45,232 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 15 technology areas.

#45,232
of 49,997 US assignees by volume: Top 45%
by Innovation Score (37.0/100): 17.4
avg claims per patent: +50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45232 · Foreign Corporation #45,232 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,232/49,997
PHOTO-FINISH BIV Medical
CPC-FOCUS C05F · 15 areas
INNOV-THIN 37.0/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: BIV Medical, Ltd. (±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 BK’s 37.0 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 6.2 pts (17%) Velocity 6.7 pts (18%) Breadth 13.7 pts (37%) Claim depth 10.4 pts (28%)

Qualcomm Incorporated · highest

85
BK · this assignee

37
3D Lighting… · lowest

7

What this shows BK's Innovation Score is 37.0/100 (top 45% 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 BK?

Each dot is one of BK’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). BK’s own 17.4 claims/patent is ABOVE the 13.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where BK's grants concentrate

BK Ltd. is a focused PatentsView assignee: 15 CPC subclasses with 40% of grants classified under C05F (Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2016. By volume, BK sits between BIV Medical, Ltd. and Black Diamond Video, Inc..

BK's three-year grant acceleration

BK Ltd. shows 2 grants in 2022–2024 against only 2 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.

BIV Medical

5
Bizmodeline

5
BJR Sensors

5
BK Giulini

5
BKT

5
Blab

5
Blachotrapez SP Z…

5
Black Diamond Vid…

5
BK ◀

5

What this shows BK holds 5 patents at rank #45,145, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near BK

By rank, the assignees closest to #45,145 in granted patent volume.

Leaders in C05F (Organic Fertilisers NOT Covered BY Subclasses C05b)

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

BK's Innovation Score vs. every tracked assignee

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

37 Top 45% higher than 55% 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 · 2016–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

BK Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2019	1	20.0%
2020	1	20.0%
2023	2	40.0%

Which technologies does BK Ltd. patent most?

C05F - Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

C05C - Nitrogenous Fertilisers 2

C05D - Inorganic Fertilisers NOT Covered BY Subclasses C05b, C05C; Fertilisers Producing Carbon Dioxide 2

C05G - Mixtures OF Fertilisers Covered Individually BY Different Subclasses OF Class C05; Mixtures OF ONE OR More Fertilisers With Materials NOT Having A Specific Fertilising Activity, e.g. Pesticides, Soil-conditioners, Wetting Agents ; Fertilisers Characterised BY Their Form 2

A01G - HORTICULTURE; Cultivation OF Vegetables, Flowers, Rice, Fruit, Vines, Hops OR SEAWEED; FORESTRY; Watering 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

C05B - Phosphatic Fertilisers 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

G06F - Electric Digital Data Processing 1

G06T - Image Data Processing OR Generation, IN General 1

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

H04W - Wireless Communication Networks 1

H04M - Telephonic Communication 1

H04N - Pictorial Communication, e.g. Television 1

Top 15 of 15 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

BK Ltd.'s patent record in context - here's where to go next.

BK Ltd.'s lead technology class is C05F (Organic Fertilisers NOT Covered BY Subclasses C05b, C05c, e.g. Fertilisers From Waste OR Refuse), 40% of its portfolio - see every assignee active in that class. Explore C05F
Ranked #45,232 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare BK Ltd. against BIV Medical, Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.0/100 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.