Where does Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd ranks #25,409 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's patent grant rate increasing or decreasing?

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's recent grant velocity is -33% 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 Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's patents?

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's patents average 11.0 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd

Q: How is the Tianhua Institute OF Chemical Machinery AND Automation 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 PatentsView assignee record - 11 granted patents across 14 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tianhua ranks #25,409 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 14 technology areas.

#25,409
of 49,997 US assignees by volume: 27th percentile
by Innovation Score (28.4/100): 11.0
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R25409 · Foreign Corporation #25,409 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #25,409/49,997
PHOTO-FINISH THE Science AND…
CPC-FOCUS B01D · 14 areas
INNOV-THIN 28.4/100
CLAIMS-PAR 11.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: THE Science AND Technology Facilities Council (±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 Tianhua’s 28.4 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 (30%) Velocity 0.0 pts (0%) Breadth 13.2 pts (46%) Claim depth 6.6 pts (23%)

Qualcomm Incorporated · highest

85
Tianhua Institute… · this assignee

28
3D Lighting… · lowest

7

What this shows Tianhua's Innovation Score is 28.4/100 (27th 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 Tianhua?

Each dot is one of Tianhua’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). Tianhua’s own 11.0 claims/patent is at or below the 14.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tianhua's grants concentrate

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd is a focused PatentsView assignee: 14 CPC subclasses with 72.7% of grants classified under B01D (Separation). Peak complete grant year is 2021 (3 grants) versus a trough of 1 in 2015. By volume, Tianhua sits between THE Science AND Technology Facilities Council and Tosoh SMD, Inc..

THE Science AND T…

11
THE United States…

11
THE Vitec Group

11
Thrivaltech

11
TK Home Solutions…

11
Tohnichi MFG

11
Topconn (Kunshan)

11
Tosoh SMD

11
Tianhua Institute… ◀

11

What this shows Tianhua holds 11 patents at rank #25,355, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tianhua

By rank, the assignees closest to #25,355 in granted patent volume.

Leaders in B01D (Separation)

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

Tianhua's Innovation Score vs. every tracked assignee

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

28 27th percentile higher than 27% 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 · 2015–2025

Grants by year

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

View data table

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2016	1	9.1%
2017	1	9.1%
2018	1	9.1%
2019	2	18.2%
2020	1	9.1%
2021	3	27.3%
2025partial year	1	9.1%

Which technologies does Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd patent most?

B01D - Separation 8

C07C - Acyclic OR Carbocyclic Compounds 4

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

F28C - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media Come Into Direct Contact Without Chemical Interaction 1

F28B - Steam OR Vapour Condensers 1

C08L - Compositions OF Macromolecular Compounds 1

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C10L - Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lighters 1

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 1

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 1

F23K - Feeding Fuel TO Combustion Apparatus 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 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

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's patent record in context - here's where to go next.

Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd's lead technology class is B01D (Separation), 72.7% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #25,409 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tianhua Institute OF Chemical Machinery AND Automation Co., Ltd against THE Science AND Technology Facilities Council, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.4/100 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.