USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Qilu University Of Technology

USPTO PatentsView assignee record - 33 granted patents across 50 technology areas, active 2019–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERW).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

9.1

Avg claims per patent

+3100%

5-year filing velocity

The verdict

Qilu holds 33 US patents across 50 technology areas, rank #9,595 of 50,000 tracked assignees.

#9,595
of 50,000 US assignees by volume: Top 2%
by Innovation Score (62.6/100): 9.1
avg claims per patent: +3100%
filing velocity, last 5 yrs

Portfolio overview

Qilu University Of Technology has been granted 33 US utility patents between 2019 and 2025, placing Qilu University Of Technology at rank #9,595 across all assignees tracked by PlainPatent. This portfolio spans 50 distinct Cooperative Patent Classification (CPC) subclasses, averaging 9.1 claims per patent with primary concentration in D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERW). As a Foreign Corporation, Qilu University Of Technology is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Qilu sits between Qbase, Llc (33 patents, rank #9,591) and Rieke Llc (33 patents, rank #9,599) - the closest US assignees by grant volume. The composite Innovation Score of 62.6/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 32 grants, compared with 1 in the 2015–2019 window, a +3100% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Qilu University Of Technology's 9.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 50 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Qilu University Of Technology against peers pursuing similar technology classes.

Qbase

33
Qingdao Goertek T…

33
Quanzhou Sanan Se…

33
Qatar Foundation

33
RBW Studio

33
Redbox Automated…

33
Richter Gedeon NY…

33
Rieke

33
Qilu University o… ◀

33

What this shows Qilu holds 33 patents at rank #9,595, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Qilu

By rank, the assignees closest to #9,595 in granted patent volume.

Leaders in D21H (PULP Compositions)

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

Qilu's Innovation Score vs. every tracked assignee

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

63 Top 2% higher than 98% 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 · 2019–2025

Grants by year

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

View data table

Qilu University Of Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	3.0%
2020	1	3.0%
2022	7	21.2%
2023	11	33.3%
2024	5	15.2%
2025	8	24.2%

Which technologies does Qilu University Of Technology patent most?

D21H - PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 6

D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR 6

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 5

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 4

H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 4

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 4

D21D - TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE 3

D21B - FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT 3

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 3

C12R - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS 3

G06F - ELECTRIC DIGITAL DATA PROCESSING 3

C22C - ALLOYS 3

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 3

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 3

C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS 2

Top 15 of 50 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#9,595

Across all tracked assignees

Innovation Score

62.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Qilu University Of Technology hold?

Qilu University Of Technology holds 33 US granted patents filed between 2019 and 2025, spanning 50 technology areas.

What is Qilu University Of Technology's Innovation Score?

Qilu University Of Technology has an Innovation Score of 62.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Qilu University Of Technology focus on?

Qilu University Of Technology's top technology area is D21H (PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR) with 6 patents. The company has filed patents in 50 CPC subclasses total.

Is Qilu University Of Technology's patent filing rate increasing or decreasing?

Qilu University Of Technology's recent filing velocity is +3100% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Qilu University Of Technology's patents?

Qilu University Of Technology's patents average 9.1 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Qilu University Of Technology 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

Qilu's 33 grants land it in the top 2% 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 - Qilu ranks #9,595 of 50,000. Top 50 holders
Most of this portfolio concentrates in D21H - see who else leads that technology area. D21H 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 Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.