Where does Shanghai Zhenhua Heavy Industries Co. Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Shanghai Zhenhua Heavy Industries Co. Ltd ranks #25,174 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 Shanghai Zhenhua Heavy Industries Co. Ltd hold?

Shanghai Zhenhua Heavy Industries Co. Ltd holds 11 US utility patents granted between 2016 and 2025, spanning 14 technology areas.

What is Shanghai Zhenhua Heavy Industries Co. Ltd's Innovation Score?

Shanghai Zhenhua Heavy Industries Co. Ltd has an Innovation Score of 35.1 out of 100 (top 50% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Shanghai Zhenhua Heavy Industries Co. Ltd focus on?

Shanghai Zhenhua Heavy Industries Co. Ltd's top technology area is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping) with 5 patents, ranking #163 of 645 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Shanghai Zhenhua Heavy Industries Co. Ltd's patent grant rate increasing or decreasing?

Shanghai Zhenhua Heavy Industries Co. Ltd's recent grant velocity is +50% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Shanghai Zhenhua Heavy Industries Co. Ltd's patents?

Shanghai Zhenhua Heavy Industries Co. Ltd's patents average 18.4 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 Shanghai Zhenhua Heavy Industries 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

Shanghai Zhenhua Heavy Industries Co. Ltd

USPTO PatentsView assignee record - 11 granted patents across 14 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: B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Shanghai ranks #25,174 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 14 technology areas.

#25,174
of 49,997 US assignees by volume: Top 50%
by Innovation Score (35.1/100): 18.4
avg claims per patent: +50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R25174 · Foreign Corporation #25,174 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #25,174/49,997
PHOTO-FINISH Senseair AB
CPC-FOCUS B63B · 14 areas
INNOV-THIN 35.1/100
CLAIMS-RICH 18.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Senseair AB (±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 Shanghai’s 35.1 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 8.6 pts (25%) Velocity 2.2 pts (6%) Breadth 13.2 pts (38%) Claim depth 11.1 pts (32%)

Qualcomm Incorporated · highest

85
Shanghai Zhenhua… · this assignee

35
3D Lighting… · lowest

7

What this shows Shanghai's Innovation Score is 35.1/100 (top 50% 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 Shanghai?

Each dot is one of Shanghai’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). Shanghai’s own 18.4 claims/patent is ABOVE the 17.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Shanghai's grants concentrate

Shanghai Zhenhua Heavy Industries Co. Ltd is a focused PatentsView assignee: 14 CPC subclasses with 45.5% of grants classified under B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2016. By volume, Shanghai sits between Senseair AB and Shenzhen Apeman Innovations Technology Co., Ltd..

Shanghai's three-year grant acceleration

Shanghai Zhenhua Heavy Industries Co. Ltd shows 2 grants in 2022–2024 against only 6 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.

Senseair AB

11
Sentient (Barbado…

11
Sequoia Sciences

11
Shanghai Yingli P…

11
Shared Space Stud…

11
Sharp Semiconduct…

11
Shazam Investments

11
Shenzhen Apeman I…

11
Shanghai Zhenhua… ◀

11

What this shows Shanghai holds 11 patents at rank #25,240, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Shanghai

By rank, the assignees closest to #25,240 in granted patent volume.

Leaders in B63B (Ships OR Other Waterborne Vessels)

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

Shanghai's Innovation Score vs. every tracked assignee

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

35 Top 50% higher than 50% 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

Shanghai Zhenhua Heavy Industries Co. Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	9.1%
2017	1	9.1%
2019	2	18.2%
2020	2	18.2%
2021	2	18.2%
2022	2	18.2%
2025partial year	1	9.1%

Which technologies does Shanghai Zhenhua Heavy Industries Co. Ltd patent most?

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 5

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 4

B66C - CRANES; Load-engaging Elements OR Devices FOR Cranes, Capstans, Winches, OR Tackles 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 2

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 1

E02F - DREDGING; Soil-shifting 1

E02B - Hydraulic Engineering 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

E04H - Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General 1

B63C - Launching, Hauling-out, OR Dry-docking OF VESSELS; Life-saving IN WATER; Equipment FOR Dwelling OR Working Under WATER; Means FOR Salvaging OR Searching FOR Underwater Objects 1

B63G - Offensive OR Defensive Arrangements ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; Aircraft Carriers 1

B63H - Marine Propulsion OR Steering 1

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

Top 14 of 14 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

Shanghai Zhenhua Heavy Industries Co. Ltd's patent record in context - here's where to go next.

Shanghai Zhenhua Heavy Industries Co. Ltd's lead technology class is B63B (Ships OR Other Waterborne VESSELS; Equipment FOR Shipping), 45.5% of its portfolio - see every assignee active in that class. Explore B63B
Ranked #25,174 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Shanghai Zhenhua Heavy Industries Co. Ltd against Senseair AB, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.1/100 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.