Where does University OF THE Witwatersrand, Johannesburg rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), University OF THE Witwatersrand, Johannesburg ranks #10,216 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 University OF THE Witwatersrand, Johannesburg hold?

University OF THE Witwatersrand, Johannesburg holds 31 US utility patents granted between 2015 and 2025, spanning 42 technology areas.

What is University OF THE Witwatersrand, Johannesburg's Innovation Score?

University OF THE Witwatersrand, Johannesburg has an Innovation Score of 46.5 out of 100 (top 20% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does University OF THE Witwatersrand, Johannesburg focus on?

University OF THE Witwatersrand, Johannesburg's top technology area is A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES) with 14 patents. Grants appear in 42 CPC subclasses total.

Is University OF THE Witwatersrand, Johannesburg's patent grant rate increasing or decreasing?

University OF THE Witwatersrand, Johannesburg's recent grant velocity is -24% 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 University OF THE Witwatersrand, Johannesburg's patents?

University OF THE Witwatersrand, Johannesburg'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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

University OF THE Witwatersrand, Johannesburg

Q: How is the University OF THE Witwatersrand, Johannesburg 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 - 31 granted patents across 42 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: A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, University ranks #10,216 of 50,000 tracked US assignees by granted-patent volume, with 31 patents across 42 technology areas.

#10,216
of 50,000 US assignees by volume: Top 20%
by Innovation Score (46.5/100): 12.8
avg claims per patent: -24%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10216 · Foreign Corporation #10,216 · 31 grants

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

GRANTS-SMALL 31 grants
UPPER-Q #10,216/50,000
PHOTO-FINISH Tintri by DDN
CPC-WIDE A61K · 42 areas
INNOV-PAR 46.5/100
CLAIMS-RICH 12.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -24% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Tintri By DDN, Inc. (±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.

Qualcomm Incorporated · highest

85
Cognizant Technology… · near

47
MUHR UND Bender KG · near

47
Nomura Research Inst… · near

47
Total Raffinage Mark… · near

47
University OF THE Wi… · this assignee

47
3D Lighting Innovati… · lowest

7

What this shows University OF THE Witwatersrand, Johannesburg stamps GRANTS-SMALL, UPPER-Q, PHOTO-FINISH, CPC-WIDE, INNOV-PAR, CLAIMS-RICH, TYPE-FRNCORP, VEL-DOWN, BOOK-FULL. Volume places it #10,216 of 50,000; Innovation Score 46.5/100 sits in the top 20% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Tintri By DDN, Inc. (±0 grants).

Portfolio overview

University OF THE Witwatersrand, Johannesburg has been granted 31 US utility patents between 2015 and 2025, placing University OF THE Witwatersrand, Johannesburg at #10,216 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 42 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.8 claims per patent with primary concentration in A61K (PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES). As a Foreign Corporation, University OF THE Witwatersrand, Johannesburg is one of the more focused assignees in the PatentsView dataset. By volume, University sits between Tintri By DDN, Inc. (31 patents, rank #10,208) and Urban Outfitters Wholesale, Inc. (31 patents, rank #10,216) - the closest US assignees by grant volume. The composite Innovation Score of 46.5/100 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 13 grants, compared with 17 in the 2015–2019 window, a -24% 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. University OF THE Witwatersrand, Johannesburg'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 42 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Tintri by DDN

31
Tyco France SAS

31
Universidad Polit…

31
Universidade DE S…

31
Ultrata

31
Uniloc Luxembourg

31
Universiteit Maas…

31
Urban Outfitters…

31
University OF THE… ◀

31

What this shows University holds 31 patents at rank #10,212, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near University

By rank, the assignees closest to #10,212 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (47 here).

MUHR UND Bender KG 47 Total Raffinage Marketing 47 Cognizant Technology Solutions U.s. Corporation 47 Nomura Research Institute, Ltd. 47

University's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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

University OF THE Witwatersrand, Johannesburg patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	19.4%
2016	5	16.1%
2017	1	3.2%
2018	2	6.5%
2019	3	9.7%
2020	4	12.9%
2021	3	9.7%
2022	2	6.5%
2023	2	6.5%
2024	2	6.5%
2025partial year	1	3.2%

Which technologies does University OF THE Witwatersrand, Johannesburg patent most?

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 14

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 8

C07K - PEPTIDES 7

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 6

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 5

C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS ; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES 3

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 2

H04B - TRANSMISSION 2

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 2

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 1

G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 1

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 1

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1

Top 15 of 42 technology areas

Where it ranks

Overall rank by patents

#10,216

of 50,000 tracked assignees

Innovation Score

46.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Cite this page

PlainPatent, “University OF THE Witwatersrand, Johannesburg Patent Portfolio.” Compiled from the underlying federal/official data source; data as of 2015–2025. https://plainpatent.com/company/university-of-the-witwatersrand-johannesburg/

Formal citation formats (APA / MLA)

APA: PlainPatent. (2015). University OF THE Witwatersrand, Johannesburg Patent Portfolio. Retrieved August 22, 2026, from https://plainpatent.com/company/university-of-the-witwatersrand-johannesburg/

MLA: "University OF THE Witwatersrand, Johannesburg Patent Portfolio." PlainPatent, 2015, https://plainpatent.com/company/university-of-the-witwatersrand-johannesburg/.

You are welcome to quote these figures with attribution to PlainPatent and the underlying source. The URL above is stable. See our Terms of Use for what reuse is permitted.

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.