Where does Semco LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Semco LLC ranks #25,158 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 Semco LLC hold?

Semco LLC holds 11 US utility patents granted between 2017 and 2024, spanning 9 technology areas.

What is Semco LLC's Innovation Score?

Semco LLC has an Innovation Score of 38.3 out of 100 (top 41% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Semco LLC focus on?

Semco LLC's top technology area is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening) with 9 patents, ranking #111 of 885 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Semco LLC's patent grant rate increasing or decreasing?

Semco LLC's recent grant velocity is +167% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Semco LLC's patents?

Semco LLC's patents average 22.9 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 Semco LLC 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

Semco LLC

USPTO PatentsView assignee record - 11 granted patents across 9 technology areas, recorded in grant years 2017–2024. 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: F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Semco ranks #25,158 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 9 technology areas.

#25,158
of 49,997 US assignees by volume: Top 41%
by Innovation Score (38.3/100): 22.9
avg claims per patent: +167%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R25158 · US Corporation #25,158 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #25,158/49,997
PHOTO-FINISH Seiko PMC
CPC-NARROW F24F · 9 areas
INNOV-THIN 38.3/100
CLAIMS-DENSE 22.9 claims/avg
TYPE-USCORP US Corporation
VEL-SURGE +167% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Seiko PMC Corporation (±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 Semco’s 38.3 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 8.6 pts (23%) Velocity 5.3 pts (14%) Breadth 10.6 pts (28%) Claim depth 13.7 pts (36%)

Qualcomm Incorporated · highest

85
Semco · this assignee

38
3D Lighting… · lowest

7

What this shows Semco's Innovation Score is 38.3/100 (top 41% 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 Semco?

Each dot is one of Semco’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). Semco’s own 22.9 claims/patent is ABOVE the 12.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Semco's grants concentrate

Semco LLC is a focused PatentsView assignee: 9 CPC subclasses with 81.8% of grants classified under F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening). Peak complete grant year is 2020 (3 grants) versus a trough of 1 in 2017. By volume, Semco sits between Seiko PMC Corporation and Shandong Computer Science Center (NATIONAL Supercomputer Center IN JINAN).

Semco's three-year grant acceleration

Semco LLC shows 4 grants in 2022–2024 against only 5 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.

Seiko PMC

11
Sejin-igb

11
Sekisui Specialty…

11
Self-suspending P…

11
SEN

11
Sequans Communica…

11
SFS Group Interna…

11
Shandong Computer…

11
Semco ◀

11

What this shows Semco holds 11 patents at rank #25,124, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Semco

By rank, the assignees closest to #25,124 in granted patent volume.

Leaders in F24F (Air-conditioning)

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

Semco's Innovation Score vs. every tracked assignee

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

38 Top 41% higher than 59% 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 · 2017–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Semco LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	9.1%
2018	1	9.1%
2019	1	9.1%
2020	3	27.3%
2021	1	9.1%
2022	2	18.2%
2023	1	9.1%
2024	1	9.1%

Which technologies does Semco LLC patent most?

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 9

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 5

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 3

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 3

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 3

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 2

E04C - Structural ELEMENTS; Building Materials 2

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

Top 9 of 9 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

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

Semco LLC's lead technology class is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening), 81.8% of its portfolio - see every assignee active in that class. Explore F24F
Ranked #25,158 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Semco LLC against Seiko PMC Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.3/100 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.