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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 grant trajectory.

115
US patents granted
#5/5
in B42
2.8%
B42 class share
-28%
5-yr velocity

The verdict

According to USPTO PatentsView, Indexing Scheme Relating To Books ranks #618 of 670 CPC technology areas - 115 US patents granted since 2015, with recorded grant volume down 28% over five years.

#618
of 670 CPC technology areas
115
US patents granted, 2015–2025
Acco Brands
leading assignee (8)
-28%
grant velocity, last 5 yrs

How B42P's grant cadence moved

Between 2020–2024, B42P recorded 46 grants versus 64 in 2015–2019 (-28% equal-window velocity). Across complete years, output peaked in 2015 at 18 grants and bottomed in 2024 at 4 (+350% peak-over-trough). Lead assignee Acco Brands Corporation holds 7.0% of the class ; the top three share 19.1%.

Leaderboard read

B42P concentration, lead at 7.0%

Acco Brands Corporation leads this historical grant record at 7.0% of B42P - us corporation assignees hold 80% of class grants (40 of 50). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
7.0%

8 of 115 grants

Top three share
19.1%

of the class's recorded grants

Lead over #2
1

more grants than CCL Label, Inc.

Where B42P sits inside B42

Among 5 subclasses in B42 (BOOKBINDING; ALBUMS; FILES; Special Printed Matter), B42P ranks #5 and holds 2.8% of the parent class's 4,157 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

B42D 2,774 B42C 578 B42F 359 B42B 331

Rising assignees active in B42P

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

  1. #1 Rocket Innovations, Inc. 1.40x 5 → 7 company-wide · 7 in B42P
  2. #2 Acco Brands Corporation 0.80x 56 → 45 company-wide · 8 in B42P
  3. #3 CCL Label, Inc. 0.80x 46 → 37 company-wide · 7 in B42P

B42P grants by year, peak 2015 (18)

US utility-patent grants per year in B42P, 2015–2025 - recent five years are down 28% 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

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). 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…The HersheyW W GraingerMueller Martini…Kids2
Top 14 B42P assignees by class footprint. Bubble size = patents in B42P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about B42P

Which company holds the most patents in B42P?
Acco Brands Corporation leads B42P with 8 patents (7.0% of the subclass). By PatentsView assignee type, us corporations account for 80% of class grants.
Which B42P assignees grew fastest recently?
Among assignees with ≥5 grants in B42P, Rocket Innovations, Inc. shows the highest company-wide grant multiple (1.40x: 5 grants in 2019–2021 → 7 in 2022–2024) while holding 7 patents in this subclass. Growth is company-wide, not class-only.
How does B42P compare inside parent class B42?
Inside B42 (BOOKBINDING; ALBUMS; FILES; Special Printed Matter), B42P ranks #5 of 5 subclasses by grant volume and holds 2.8% of the parent class total. The largest sibling is B42D (2,774 grants).

What to do with this data

B42P in context - here's where to go next.

  • Acco Brands Corporation leads B42P with 8 grants in this class. See full portfolio
  • B42P ranks #618 of 670 by grant volume among all tracked CPC technology areas. See the ranking
  • Inside parent class B42, the largest sibling subclass is B42D with 2,774 grants. Explore B42D

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - B42P figures are USPTO PatentsView granted-utility totals for this subclass (115 grants in the tracked window).

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.