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CPC technology class · B42

B42P - Indexing Scheme Relating TO Books

Indexing scheme relating to books, filing appliances or the like. 115 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

115
US patents granted
B42
Parent CPC class
20
Active assignees
-22%
5-yr velocity

The verdict

Indexing Scheme Relating TO Books ranks #618 of 670 CPC technology areas - 115 US patents granted since 2015, with filing down 22% over five years.

#618
of 670 CPC technology areas
115
US patents granted, 2015–2025
Acco Brands
leading assignee (8)
-22%
filing velocity, last 5 yrs
Top assignee: ACCO Brands Corporation (8 patents)

CPC subclass B42P - INDEXING SCHEME RELATING TO BOOKS, FILING APPLIANCES OR THE LIKE - covers 115 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B42 (BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER). See our CPC classification guide for how the system works.

The competitive landscape in B42P is shaped by 20 distinct companies actively filing in this space. ACCO Brands Corporation leads with 8 patents, followed by CCL Label, Inc. at 7 grants and Rocket Innovations, Inc. at 7.

Filing activity in B42P is down 22% 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 B42P innovation accelerating?

US utility-patent grants per year in B42P, 2015–2025 - recent five years are down 22% versus 2015–2019.

05101520 20152016201720182019202020212022202320242025 4

Who leads B42P?

The 12 most active assignees in INDEXING SCHEME RELATING TO BOOKS, FILING APPLIANCES OR THE LIKE - wider bars mean more grants

patents

What this shows Acco Brands is the most active filer in B42P, holding 8 of the 115 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass B42P
Rank Company Patents in B42P
#1 ACCO Brands Corporation 8
#2 CCL Label, Inc. 7
#3 Rocket Innovations, Inc. 7
#4 American Greetings Corporation 3
#5 LSC Communications US, Llc 3
#6 Lovepop, Inc. 2
#7 KING JIM Co., Ltd. 2
#8 World Wide Stationery Mfg. Co., Ltd. 2
#9 Microdata Corporation 2
#10 Ideastream Consumer Products, Llc 1
#11 The Hershey Company 1
#12 W.w. Grainger, Inc. 1
#13 Mueller Martini Holding Ag 1
#14 Kids2, Llc 1
#15 Worklife Brands Llc 1
#16 Melissa & Doug, Llc 1
#17 Rekon, Llc 1
#18 PAO SHEN Enterprises Co., Ltd. 1
#19 Novalia Ltd. 1
#20 Sasol WAX Gmbh 1

About This Class

CPC subclass B42P belongs to class B42.

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

20 companies actively patent in this space.

Classification System

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

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading B42P assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 B42P assignees by class footprint. Bubble size = patents in B42P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 B42P assignees by class footprint. Bubble size = patents in B42P. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 0510152025 0246810 Patents in B42P Avg claims / patent (company-wide) Acco BrandsCcl LabelRocket InnovationsAmerican GreetingsLsc Communications UsLovepopKing JimWorld Wide Stationery…MicrodataIdeastream Consumer P…The HersheyW W GraingerMueller Martini Holdi…Kids2
Top 14 B42P assignees by class footprint. Bubble size = patents in B42P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B42P?
CPC subclass B42P covers INDEXING SCHEME RELATING TO BOOKS, FILING APPLIANCES OR THE LIKE. It belongs to CPC class B42 (BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER), with 115 US utility patents granted since 2015.
How many patents have been filed in B42P?
115 US utility patents were granted in CPC subclass B42P between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B42P?
ACCO Brands Corporation leads B42P with 8 patents, making it the most active assignee in this technology area.
How is patent data for B42P 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., B42) is a broad technology category. Subclasses like B42P 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.