USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Weichai Power Co., Ltd.

USPTO PatentsView assignee record - 53 granted patents across 34 technology areas, recorded in grant years 2015–2025. 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: Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

12.8

Avg claims per patent

+471%

5-year grant velocity

The verdict

According to USPTO PatentsView, Weichai ranks #6,406 of 50,000 tracked US assignees by granted-patent volume, with 53 patents across 34 technology areas.

#6,406
of 50,000 US assignees by volume: Top 8%
by Innovation Score (54.4/100): 12.8
avg claims per patent: +471%
grant velocity, last 5 yrs

Portfolio overview

Weichai Power Co., Ltd. has been granted 53 US utility patents between 2015 and 2025, placing Weichai Power Co., Ltd. at #6,406 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 34 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.8 claims per patent with primary concentration in Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION). As a Foreign Corporation, Weichai Power Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Weichai sits between Veoneer Sweden AB (53 patents, rank #6,400) and Zoho Corporation Private Limited (53 patents, rank #6,408) - the closest US assignees by grant volume. The composite Innovation Score of 54.4/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 40 grants, compared with 7 in the 2015–2019 window, a +471% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Weichai Power Co., Ltd.'s 12.8 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 34 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Veoneer Sweden AB

53
Varcode

53
Velcro BVBA

53
Virtuozzo Interna…

53
YUAN ZE University

53
Zhejiang Shenghui…

53
Zwilling J A Henc…

53
Zoho Private

53
Weichai Power ◀

53

What this shows Weichai holds 53 patents at rank #6,404, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Weichai

By rank, the assignees closest to #6,404 in granted patent volume.

Leaders in Y02T (Climate Change Mitigation Technologies Related TO Transpo…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Weichai, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (54 here).

J. Wagner Gmbh 54 Phoseon Technology, Inc. 54 Industry Foundation OF Chonnam National University 54 Space Systems/loral, Llc 54

Similar claim depth

Nearest assignees by average claims per patent (12.8 here).

Ferno-washington, Inc. 12.8 avg Aktiebolaget Electrolux 12.8 avg Cascade Corporation 12.8 avg Iconex Llc 12.8 avg

Weichai's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% of 50,000 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 · 2015–2025

Grants by year

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

View data table

Weichai Power Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	1.9%
2017	4	7.5%
2018	2	3.8%
2020	1	1.9%
2021	13	24.5%
2022	10	18.9%
2023	5	9.4%
2024	11	20.8%
2025partial year	6	11.3%

Which technologies does Weichai Power Co., Ltd. patent most?

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 30

F02D - CONTROLLING COMBUSTION ENGINES 17

F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 17

F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 11

F02B - INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 11

F02F - CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 5

F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 4

B60K - ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY 4

B01D - SEPARATION 4

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 3

F01M - LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING 3

F16H - GEARING 2

B60Y - INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY 2

G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR 2

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1

Top 15 of 34 technology areas

Grant record at a glance

Portfolio Volume 53 grants

CPC subclasses 34

Avg. claims / grant 12.8

Velocity +471%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#6,406

of 50,000 tracked assignees

Innovation Score

54.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

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

According to USPTO PatentsView (2015–2025 granted utility patents), Weichai Power Co., Ltd. ranks #6,406 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Weichai Power Co., Ltd. hold?

Weichai Power Co., Ltd. holds 53 US utility patents granted between 2015 and 2025, spanning 34 technology areas.

What is Weichai Power Co., Ltd.'s Innovation Score?

Weichai Power Co., Ltd. has an Innovation Score of 54.4 out of 100 (top 8% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Weichai Power Co., Ltd. focus on?

Weichai Power Co., Ltd.'s top technology area is Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION) with 30 patents. Grants appear in 34 CPC subclasses total.

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

Weichai Power Co., Ltd.'s recent grant velocity is +471% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Weichai Power Co., Ltd.'s patents average 12.8 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 Weichai Power 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.

How to use this portfolio

Weichai's 53 grants land it in the top 8% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Weichai ranks #6,406 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02T - see who else leads that technology area. Y02T leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.