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CPC technology class · H99

H99Z - Subject Matter

Subject matter not otherwise provided for in this section. 9 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

9
US patents granted
H99
Parent CPC class
0
Active assignees
-87%
5-yr velocity

The verdict

Subject Matter ranks #662 of 670 CPC technology areas - 9 US patents granted since 2015, with filing down 87% over five years.

#662
of 670 CPC technology areas
9
US patents granted, 2015–2025
International Busines…
leading assignee (7)
-87%
filing velocity, last 5 yrs
Top assignee: International Business Machines Corporation (7 patents)

CPC subclass H99Z - SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION - covers 9 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class H99 (SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION). See our CPC classification guide for how the system works.

The competitive landscape in H99Z is shaped by a range of assignees actively filing in this space. International Business Machines Corporation leads with 7 patents.

Filing activity in H99Z is down 87% over the past five years versus 2015-2019, a notable slowdown that may signal a maturing field. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is H99Z innovation accelerating?

US utility-patent grants per year in H99Z, 2015–2025 - recent five years are down 87% versus 2015–2019.

02468 201820192020 1

About This Class

CPC subclass H99Z belongs to class H99.

9 patents were granted in this class between 2015 and 2025.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

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Frequently Asked Questions

What is CPC class H99Z?
CPC subclass H99Z covers SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION. It belongs to CPC class H99 (SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION), with 9 US utility patents granted since 2015.
How many patents have been filed in H99Z?
9 US utility patents were granted in CPC subclass H99Z between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in H99Z?
International Business Machines Corporation leads H99Z with 7 patents, making it the most active assignee in this technology area.
How is patent data for H99Z collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., H99) is a broad technology category. Subclasses like H99Z provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.