Where does Hydrostor Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hydrostor Inc. ranks #16,869 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 Hydrostor Inc. hold?

Hydrostor Inc. holds 17 US utility patents granted between 2016 and 2025, spanning 16 technology areas.

What is Hydrostor Inc.'s Innovation Score?

Hydrostor Inc. has an Innovation Score of 55.0 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hydrostor Inc. focus on?

Hydrostor Inc.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 16 patents, ranking #856 of 5,963 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

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

Hydrostor Inc.'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 Hydrostor Inc.'s patents?

Hydrostor Inc.'s patents average 18.2 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 Hydrostor 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 Foreign Corporation

Hydrostor Inc.

USPTO PatentsView assignee record - 17 granted patents across 16 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hydrostor ranks #16,869 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 16 technology areas.

#16,869
of 49,997 US assignees by volume: Top 7%
by Innovation Score (55.0/100): 18.2
avg claims per patent: +200%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16869 · Foreign Corporation #16,869 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 17 grants
MID-PACK #16,869/49,997
PHOTO-FINISH Homag Holzbearbeitun…
CPC-FOCUS Y02E · 16 areas
INNOV-PAR 55.0/100
CLAIMS-RICH 18.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +200% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Homag Holzbearbeitungssysteme GmbH (±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 Hydrostor’s 55.0 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 10.0 pts (18%) Velocity 20.0 pts (36%) Breadth 14.1 pts (26%) Claim depth 10.9 pts (20%)

Qualcomm Incorporated · highest

85
San Diego State… · near

55
Southern University… · near

55
Albert-Ludwigs-Unive… · near

55
BL · near

55
Hydrostor · this assignee

55
3D Lighting… · lowest

7

What this shows Hydrostor's Innovation Score is 55.0/100 (top 7% 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 Hydrostor?

Each dot is one of Hydrostor’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). Hydrostor’s own 18.2 claims/patent is ABOVE the 15.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hydrostor's grants concentrate

Hydrostor Inc. is a focused PatentsView assignee: 16 CPC subclasses with 94.1% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2023 (4 grants) versus a trough of 1 in 2017. By volume, Hydrostor sits between Homag Holzbearbeitungssysteme GmbH and Ildong Pharmaceutical Co., Ltd..

Hydrostor's three-year grant acceleration

Hydrostor Inc. shows 7 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.

Homag Holzbearbei…

17
Horizon IP Tech

17
Huizhou Light Eng…

17
Hytrust

17
Hygieia

17
I-pex

17
IBS of America

17
Ildong Pharmaceut…

17
Hydrostor ◀

17

What this shows Hydrostor holds 17 patents at rank #16,870, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hydrostor

By rank, the assignees closest to #16,870 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Hydrostor, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), Hydrostor ranks #856 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (55 here).

BL Technologies, Inc. 55 Albert-Ludwigs-Universitaet Freiburg 55 San Diego State University Research Foundation 55 Southern University of Science and Technology 55

Hydrostor's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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

Hydrostor Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	11.8%
2017	1	5.9%
2020	2	11.8%
2022	3	17.6%
2023	4	23.5%
2025partial year	5	29.4%

Which technologies does Hydrostor Inc. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 16

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 16

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 13

F03D - Wind Motors 9

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 8

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 7

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 7

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 4

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 3

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

H01L - Semiconductor Devices NOT Covered BY Class H10 2

F03G - Spring, Weight, Inertia OR Like MOTORS; Mechanical-power Producing Devices OR Mechanisms, NOT Otherwise Provided FOR OR Using Energy Sources NOT Otherwise Provided FOR 2

F05B - Indexing Scheme Relating TO Wind, Spring, Weight, Inertia OR Like Motors, TO Machines OR Engines FOR Liquids Covered BY Subclasses F03b, F03d AND F03g 1

F03B - Machines OR Engines FOR Liquids 1

F17D - Pipe-line SYSTEMS; Pipe-lines 1

Top 15 of 16 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

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

Hydrostor Inc.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 94.1% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #16,869 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hydrostor Inc. against Homag Holzbearbeitungssysteme GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.0/100 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.