PlainPatent

CPC technology class · B41

B41L - Apparatus OR Devices FOR Manifolding

Apparatus or devices for manifolding, duplicating or printing for office or other commercial purposes; addressing machines or like series-printing machines. 113 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

113
US patents granted
B41
Parent CPC class
12
Active assignees
+8%
5-yr velocity

The verdict

Apparatus OR Devices FOR Manifolding ranks #619 of 670 CPC technology areas - 113 US patents granted since 2015, with filing up 8% over five years.

#619
of 670 CPC technology areas
113
US patents granted, 2015–2025
Hewlett-packard Devel…
leading assignee (21)
+8%
filing velocity, last 5 yrs
Top assignee: Hewlett-packard Development Company, L.p. (21 patents)

CPC subclass B41L - APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES - covers 113 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B41 (PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS). See our CPC classification guide for how the system works.

The competitive landscape in B41L is shaped by 12 distinct companies actively filing in this space. Hewlett-packard Development Company, L.p. leads with 21 patents, followed by Media Blast & Abrasive, Inc. at 2 grants and Janome Sewing Machine Co., Ltd. at 1.

Filing activity in B41L is up 8% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is B41L innovation accelerating?

US utility-patent grants per year in B41L, 2015–2025 - recent five years are up 8% versus 2015–2019.

46810121416 20152016201720182019202020212022202320242025 6

Who leads B41L?

The 12 most active assignees in APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES - wider bars mean more grants

patents

What this shows Hewlett-packard Devel… is the most active filer in B41L, holding 21 of the 113 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 B41L
Rank Company Patents in B41L
#1 DET International Holding Limited 2
#2 Media Blast & Abrasive, Inc. 2
#3 Janome Sewing Machine Co., Ltd. 1
#4 Komori Corporation 1
#5 Foxlink Image Technology Co., Ltd. 1
#6 Canon Finetech Inc. 1
#7 Esko-graphics Imaging Gmbh 1
#8 Private Identity Llc 1
#9 Taiwan Hopax Chemicals Mfg. Co., Ltd. 1
#10 Manroland Web Systems Gmbh 1
#11 Innovative ART Concepts, Llc 1
#12 Frama Ag 1

About This Class

CPC subclass B41L belongs to class B41.

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

12 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 B41L 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 12 B41L assignees by class footprint. Bubble size = patents in B41L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 12 B41L assignees by class footprint. Bubble size = patents in B41L. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 12 data points (bubble-sized by third dimension). 051015202530 0.511.522.5 Patents in B41L Avg claims / patent (company-wide) Det International Hol…Media Blast & AbrasiveJanome Sewing MachineKomoriFoxlink Image Technol…Canon FinetechEsko-graphics ImagingPrivate IdentityTaiwan Hopax Chemical…manroland web systemsInnovative Art Concep…Frama
Top 12 B41L assignees by class footprint. Bubble size = patents in B41L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B41L?
CPC subclass B41L covers APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES. It belongs to CPC class B41 (PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS), with 113 US utility patents granted since 2015.
How many patents have been filed in B41L?
113 US utility patents were granted in CPC subclass B41L between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B41L?
Hewlett-packard Development Company, L.p. leads B41L with 21 patents, making it the most active assignee in this technology area.
How is patent data for B41L 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., B41) is a broad technology category. Subclasses like B41L 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.