Where does Essai, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Essai, Inc. ranks #15,996 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 Essai, Inc. hold?

Essai, Inc. holds 18 US utility patents granted between 2015 and 2024, spanning 3 technology areas.

What is Essai, Inc.'s Innovation Score?

Essai, Inc. has an Innovation Score of 36.8 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 Essai, Inc. focus on?

Essai, Inc.'s top technology area is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables) with 18 patents, ranking #314 of 3,424 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

Is Essai, Inc.'s patent grant rate increasing or decreasing?

Essai, Inc.'s recent grant velocity is -62% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Essai, Inc.'s patents?

Essai, Inc.'s patents average 12.0 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 Essai, Inc. 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

Essai, Inc.

USPTO PatentsView assignee record - 18 granted patents across 3 technology areas, recorded in grant years 2015–2024. 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: G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Essai ranks #15,996 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 3 technology areas.

#15,996
of 49,997 US assignees by volume: Top 45%
by Innovation Score (36.8/100): 12.0
avg claims per patent: -62%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15996 · US Corporation #15,996 · 18 grants

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

GRANTS-MICRO 18 grants
MID-PACK #15,996/49,997
PHOTO-FINISH Eagles Nest Outfitters
CPC-NARROW G01R · 3 areas
INNOV-THIN 36.8/100
CLAIMS-RICH 12.0 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -62% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Eagles Nest Outfitters, 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 Essai’s 36.8 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 10.2 pts (28%) Velocity 13.3 pts (36%) Breadth 6.1 pts (17%) Claim depth 7.2 pts (20%)

Qualcomm Incorporated · highest

85
Essai · this assignee

37
3D Lighting… · lowest

7

What this shows Essai's Innovation Score is 36.8/100 (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 Essai?

Each dot is one of Essai’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). Essai’s own 12.0 claims/patent is ABOVE the 11.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Essai's grants concentrate

Essai, Inc. is a focused PatentsView assignee: 3 CPC subclasses with 100% of grants classified under G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2019. By volume, Essai sits between ENF Technology Co., Ltd. and Eagles Nest Outfitters, Inc..

Essai's three-year grant acceleration

Essai, Inc. shows 4 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.

ENF Technology

18
Enovate Systems

18
Enraytek Optoelec…

18
EPC Natural Produ…

18
Etopus Technology

18
EVE Energy

18
Exfo Solutions SAS

18
Eagles Nest Outfi…

18
Essai ◀

18

What this shows Essai holds 18 patents at rank #15,986, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Essai

By rank, the assignees closest to #15,986 in granted patent volume.

Leaders in G01R (Measuring Electric Variables)

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

Essai'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 · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Essai, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	16.7%
2016	4	22.2%
2017	3	16.7%
2018	2	11.1%
2019	1	5.6%
2021	1	5.6%
2022	2	11.1%
2024	2	11.1%

Which technologies does Essai, Inc. patent most?

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 18

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

H01L - Semiconductor Devices NOT Covered BY Class H10 1

Top 3 of 3 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

Essai, Inc.'s patent record in context - here's where to go next.

Essai, Inc.'s lead technology class is G01R (Measuring Electric VARIABLES; Measuring Magnetic Variables), 100% of its portfolio - see every assignee active in that class. Explore G01R
Ranked #15,996 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Essai, Inc. against ENF Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.8/100 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.