Where does KEMCO rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), KEMCO ranks #48,098 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 KEMCO hold?

KEMCO holds 5 US utility patents granted between 2024 and 2025, spanning 7 technology areas.

What is KEMCO's Innovation Score?

KEMCO has an Innovation Score of 39.3 out of 100 (top 38% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does KEMCO focus on?

KEMCO's top technology area is C01G (Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f) with 5 patents, ranking #88 of 473 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is KEMCO's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for KEMCO.

What does claim depth mean for KEMCO's patents?

KEMCO'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 KEMCO 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

KEMCO

USPTO PatentsView assignee record - 5 granted patents across 7 technology areas, recorded in grant years 2024–2025. 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: C01G (Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kemco ranks #48,098 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 7 technology areas.

#48,098
of 49,997 US assignees by volume: Top 38%
by Innovation Score (39.3/100): 17.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R48098 · Foreign Corporation #48,098 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #48,098/49,997
PHOTO-FINISH Keisei Rose Nurseries
CPC-NARROW C01G · 7 areas
INNOV-THIN 39.3/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Keisei Rose Nurseries Inc. (±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 Kemco’s 39.3 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 (16%) Velocity 13.3 pts (34%) Breadth 9.4 pts (24%) Claim depth 10.4 pts (26%)

Qualcomm Incorporated · highest

85
KEMCO · this assignee

39
3D Lighting… · lowest

7

What this shows Kemco's Innovation Score is 39.3/100 (top 38% 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 Kemco?

Each dot is one of Kemco’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). Kemco’s own 17.4 claims/patent is ABOVE the 6.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Kemco's grants concentrate

KEMCO is a focused PatentsView assignee: 7 CPC subclasses with 100% of grants classified under C01G (Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f). By volume, Kemco sits between Keisei Rose Nurseries Inc. and Kennedy-wilson, Inc..

Kemco's three-year grant acceleration

KEMCO shows 2 grants in 2022–2024 against only 0 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.

Keisei Rose Nurse…

5
Keitech

5
Kellanova

5
Keltronix

5
Kemflo (Nanjing)…

5
Kemijski Institut

5
KEN Sean Industri…

5
Kennedy-wilson

5
Kemco ◀

5

What this shows KEMCO holds 5 patents at rank #48,079, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near KEMCO

By rank, the assignees closest to #48,079 in granted patent volume.

Leaders in C01G (Compounds Containing Metals NOT Covered BY Subclasses C01…)

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

Kemco's Innovation Score vs. every tracked assignee

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

39 Top 38% higher than 62% 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 · 2024–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2024–2019 baseline. Full figures in the table below.

View data table

KEMCO patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	2	40.0%
2025partial year	3	60.0%

Which technologies does KEMCO patent most?

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 5

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 5

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 5

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 4

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

B01D - Separation 1

Top 7 of 7 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

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

KEMCO's lead technology class is C01G (Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f), 100% of its portfolio - see every assignee active in that class. Explore C01G
Ranked #48,098 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare KEMCO against Keisei Rose Nurseries Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.3/100 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.