Where does Joulwatt Technology (HANGZHOU) Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Joulwatt Technology (HANGZHOU) Co., Ltd. ranks #8,230 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 Joulwatt Technology (HANGZHOU) Co., Ltd. hold?

Joulwatt Technology (HANGZHOU) Co., Ltd. holds 39 US utility patents granted between 2017 and 2024, spanning 11 technology areas.

What is Joulwatt Technology (HANGZHOU) Co., Ltd.'s Innovation Score?

Joulwatt Technology (HANGZHOU) Co., Ltd. has an Innovation Score of 34.6 out of 100 (48th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Joulwatt Technology (HANGZHOU) Co., Ltd.'s patent grant rate increasing or decreasing?

Joulwatt Technology (HANGZHOU) Co., Ltd.'s recent grant velocity is -14% 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 Joulwatt Technology (HANGZHOU) Co., Ltd.'s patents?

Joulwatt Technology (HANGZHOU) Co., Ltd.'s patents average 13.3 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 Joulwatt Technology (HANGZHOU) 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

Joulwatt Technology (HANGZHOU) Co., Ltd.

Q: What technology areas does Joulwatt Technology (HANGZHOU) Co., Ltd. focus on?

Joulwatt Technology (HANGZHOU) Co., Ltd.'s top technology area is H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof) with 23 patents, ranking #177 of 1,541 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 39 granted patents across 11 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: H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Joulwatt ranks #8,230 of 49,997 tracked US assignees by granted-patent volume, with 39 patents across 11 technology areas.

#8,230
of 49,997 US assignees by volume: 48th percentile
by Innovation Score (34.6/100): 13.3
avg claims per patent: -14%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8230 · Foreign Corporation #8,230 · 39 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 39 grants
UPPER-Q #8,230/49,997
PHOTO-FINISH Industrie Borla S p A
CPC-FOCUS H02M · 11 areas
INNOV-THIN 34.6/100
CLAIMS-RICH 13.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -14% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Industrie Borla S.p.A. (±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 Joulwatt’s 34.6 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 12.7 pts (37%) Velocity 2.1 pts (6%) Breadth 11.7 pts (34%) Claim depth 8.0 pts (23%)

Qualcomm Incorporated · highest

85
Medical Diagnostic… · near

35
Quixey · near

35
Clean Diesel · near

35
Joulwatt Technology… · this assignee

35
NLB · near

35
3D Lighting… · lowest

7

What this shows Joulwatt's Innovation Score is 34.6/100 (48th percentile 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 Joulwatt?

Each dot is one of Joulwatt’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). Joulwatt’s own 13.3 claims/patent is ABOVE the 10.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Joulwatt's grants concentrate

Joulwatt Technology (HANGZHOU) Co., Ltd. is a focused PatentsView assignee: 11 CPC subclasses with 59% of grants classified under H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;). Peak complete grant year is 2019 (15 grants) versus a trough of 1 in 2017. By volume, Joulwatt sits between Industrie Borla S.p.A. and Kuang-chi Innovative Technology Ltd..

Joulwatt's three-year grant acceleration

From 2019–2021 to 2022–2024, Joulwatt Technology (HANGZHOU) Co., Ltd. moved from 25 to 8 grants (0.32x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Industrie Borla S…

39
Innoviz

39
J R Simplot

39
Johnson Controls…

39
Japanese Foundati…

39
Kotobuki &

39
KSB Aktiengesells…

39
Kuang-chi Innovat…

39
Joulwatt Technolo… ◀

39

What this shows Joulwatt holds 39 patents at rank #8,229, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Joulwatt

By rank, the assignees closest to #8,229 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Joulwatt, neither rank-band nor same-CPC leaders (those blocks stay above). In H02M (Apparatus FOR Conversion Between AC AND AC), Joulwatt ranks #177 of 1,541 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (35 here).

Clean Diesel Technologies, Inc. 35 NLB, Corp. 35 Medical Diagnostic Laboratories, LLC 35 Quixey, Inc. 35

Joulwatt's Innovation Score vs. every tracked assignee

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

35 48th percentile higher than 48% 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

Joulwatt Technology (HANGZHOU) Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	2.6%
2018	5	12.8%
2019	15	38.5%
2020	4	10.3%
2021	6	15.4%
2022	5	12.8%
2023	2	5.1%
2024	1	2.6%

Which technologies does Joulwatt Technology (HANGZHOU) Co., Ltd. patent most?

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 23

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 18

H03K - Pulse Technique 14

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 11

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 3

H02H - Emergency Protective Circuit Arrangements 3

H10D - Inorganic Electric Semiconductor Devices 2

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

G05F - Systems FOR Regulating Electric OR Magnetic Variables 2

G06F - Electric Digital Data Processing 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

Top 11 of 11 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

Joulwatt Technology (HANGZHOU) Co., Ltd.'s patent record in context - here's where to go next.

Joulwatt Technology (HANGZHOU) Co., Ltd.'s lead technology class is H02M (Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER;), 59% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #8,230 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Joulwatt Technology (HANGZHOU) Co., Ltd. against Industrie Borla S.p.A., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.6/100 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.