Where does LOT Vacuum Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), LOT Vacuum Co., Ltd. ranks #48,448 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 LOT Vacuum Co., Ltd. hold?

LOT Vacuum Co., Ltd. holds 5 US utility patents granted between 2016 and 2025, spanning 9 technology areas.

What is LOT Vacuum Co., Ltd.'s Innovation Score?

LOT Vacuum Co., Ltd. has an Innovation Score of 42.1 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is LOT Vacuum Co., Ltd.'s patent grant rate increasing or decreasing?

LOT Vacuum Co., Ltd.'s recent grant velocity is +200% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for LOT Vacuum Co., Ltd.'s patents?

LOT Vacuum Co., Ltd.'s patents average 8.8 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 LOT Vacuum Co., 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

LOT Vacuum Co., Ltd.

Q: What technology areas does LOT Vacuum Co., Ltd. focus on?

LOT Vacuum Co., Ltd.'s top technology area is H05H (Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams) with 4 patents, ranking #108 of 380 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 9 technology areas, recorded in grant years 2016–2025. 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: H05H (Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, LOT ranks #48,448 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 9 technology areas.

#48,448
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.1/100): 8.8
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R48448 · Foreign Corporation #48,448 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #48,448/49,997
PHOTO-FINISH Longvale
CPC-NARROW H05H · 9 areas
INNOV-PAR 42.1/100
CLAIMS-PAR 8.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Longvale 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 LOT’s 42.1 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 (15%) Velocity 20.0 pts (48%) Breadth 10.6 pts (25%) Claim depth 5.3 pts (13%)

Qualcomm Incorporated · highest

85
LOT Vacuum · this assignee

42
3D Lighting… · lowest

7

What this shows LOT's Innovation Score is 42.1/100 (top 31% 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 LOT?

Each dot is one of LOT’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). LOT’s own 8.8 claims/patent is at or below the 11.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where LOT's grants concentrate

LOT Vacuum Co., Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 80% of grants classified under H05H (Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2016. By volume, LOT sits between Longvale Ltd and LR Intralogistik GmbH.

LOT's three-year grant acceleration

LOT Vacuum Co., Ltd. shows 3 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.

Longvale

5
Longwide Technolo…

5
Looker Data Scien…

5
Lorom Industrial

5
Lotte Energy Mate…

5
Loyalblocks

5
LPG Systems

5
LR Intralogistik

5
LOT Vacuum ◀

5

What this shows LOT holds 5 patents at rank #48,360, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near LOT

By rank, the assignees closest to #48,360 in granted patent volume.

Leaders in H05H (Plasma Technique)

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

LOT's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2016–2025

Grants by year

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

View data table

LOT Vacuum Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2024	3	60.0%
2025partial year	1	20.0%

Which technologies does LOT Vacuum Co., Ltd. patent most?

H05H - Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams 4

H01J - Electric Discharge Tubes OR Discharge Lamps 4

B01D - Separation 4

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 3

H01L - Semiconductor Devices NOT Covered BY Class H10 2

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 1

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

H01Q - Antennas, i.e. Radio Aerials 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

LOT Vacuum Co., Ltd.'s patent record in context - here's where to go next.

LOT Vacuum Co., Ltd.'s lead technology class is H05H (Plasma Technique ; Production OF Accelerated Electrically-charged Particles OR OF NEUTRONS; Production OR Acceleration OF Neutral Molecular OR Atomic Beams), 80% of its portfolio - see every assignee active in that class. Explore H05H
Ranked #48,448 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare LOT Vacuum Co., Ltd. against Longvale Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.1/100 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.