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

According to USPTO PatentsView (2015–2025 granted utility patents), Elivac Co., Ltd. ranks #22,514 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 Elivac Co., Ltd. hold?

Elivac Co., Ltd. holds 12 US utility patents granted between 2022 and 2025, spanning 8 technology areas.

What is Elivac Co., Ltd.'s Innovation Score?

Elivac Co., Ltd. has an Innovation Score of 45.7 out of 100 (top 23% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Insufficient historical data is available to calculate a velocity trend for Elivac Co., Ltd..

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

Elivac Co., Ltd.'s patents average 11.4 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 Elivac 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

Elivac Co., Ltd.

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

Elivac Co., Ltd.'s top technology area is F04C (Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps) with 8 patents, ranking #79 of 587 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

USPTO PatentsView assignee record - 12 granted patents across 8 technology areas, recorded in grant years 2022–2025. 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: F04C (Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Elivac ranks #22,514 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 8 technology areas.

#22,514
of 49,997 US assignees by volume: Top 23%
by Innovation Score (45.7/100): 11.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R22514 · Foreign Corporation #22,514 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 12 grants
MID-PACK #22,514/49,997
PHOTO-FINISH Ecoplastic
CPC-NARROW F04C · 8 areas
INNOV-PAR 45.7/100
CLAIMS-PAR 11.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2025 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Ecoplastic 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 Elivac’s 45.7 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 8.9 pts (19%) Velocity 20.0 pts (44%) Breadth 10.0 pts (22%) Claim depth 6.9 pts (15%)

Qualcomm Incorporated · highest

85
Elivac · this assignee

46
3D Lighting… · lowest

7

What this shows Elivac's Innovation Score is 45.7/100 (top 23% 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 Elivac?

Each dot is one of Elivac’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). Elivac’s own 11.4 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Elivac's grants concentrate

Elivac Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 66.7% of grants classified under F04C (Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2023. By volume, Elivac sits between Ecoplastic Corporation and Entire Technology Co., Ltd..

Elivac's three-year grant acceleration

Elivac Co., Ltd. shows 7 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.

Ecoplastic

12
Eemax

12
Elcelyx Therapeut…

12
Elite Semiconduct…

12
Elysium Health

12
EMU Group S P A

12
Energy Absorption…

12
Entire Technology

12
Elivac ◀

12

What this shows Elivac holds 12 patents at rank #22,500, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Elivac

By rank, the assignees closest to #22,500 in granted patent volume.

Leaders in F04C (Rotary-piston)

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

Elivac's Innovation Score vs. every tracked assignee

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

46 Top 23% higher than 77% 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 · 2022–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Elivac Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	4	33.3%
2023	1	8.3%
2024	2	16.7%
2025partial year	5	41.7%

Which technologies does Elivac Co., Ltd. patent most?

F04C - Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps 8

F28B - Steam OR Vapour Condensers 4

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 2

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 2

H02K - Dynamo-electric Machines 2

F01K - Steam Engine PLANTS; Steam ACCUMULATORS; Engine Plants NOT Otherwise Provided FOR; Engines Using Special Working Fluids OR Cycles 2

Top 8 of 8 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

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

Elivac Co., Ltd.'s lead technology class is F04C (Rotary-piston, OR Oscillating-piston, Positive-displacement Machines FOR Liquids ; Rotary-piston, OR Oscillating-piston, Positive-displacement Pumps), 66.7% of its portfolio - see every assignee active in that class. Explore F04C
Ranked #22,514 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Elivac Co., Ltd. against Ecoplastic Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.7/100 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.