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CPC technology class · B29

B29K - Indexing Scheme Associated WITH Subclasses B29B

Indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for ; moulds, ; reinforcements, fillers or preformed parts, e.g. inserts. 22,850 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

22,850
US patents granted
B29
Parent CPC class
20
Active assignees
+31%
5-yr velocity

The verdict

Indexing Scheme Associated WITH Subclasses B29B ranks #89 of 670 CPC technology areas - 22,850 US patents granted since 2015, with filing up 31% over five years.

#89
of 670 CPC technology areas
22,850
US patents granted, 2015–2025
The Boeing
leading assignee (618)
+31%
filing velocity, last 5 yrs
Top assignee: The Boeing Company (618 patents)

CPC subclass B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - covers 22,850 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class B29 (WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL). See our CPC classification guide for how the system works.

The competitive landscape in B29K is shaped by 20 distinct companies actively filing in this space. The Boeing Company leads with 618 patents, followed by NIKE, Inc. at 299 grants and The Procter & Gamble Company at 212.

Filing activity in B29K is up 31% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is B29K innovation accelerating?

US utility-patent grants per year in B29K, 2015–2025 - recent five years are up 31% versus 2015–2019.

1,0001,5002,0002,5003,000 20152016201720182019202020212022202320242025 1,397

Who leads B29K?

The 12 most active assignees in INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - wider bars mean more grants

patents

What this shows The Boeing is the most active filer in B29K, holding 618 of the 22,850 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 B29K
Rank Company Patents in B29K
#1 The Boeing Company 618
#2 NIKE, Inc. 299
#3 The Procter & Gamble Company 212
#4 Hewlett-packard Development Company, L.p. 189
#5 DOW Global Technologies Llc 150
#6 Sabic Global Technologies B.v. 150
#7 Toray Industries, Inc. 148
#8 Stratasys Ltd. 146
#9 Xerox Corporation 116
#10 Airbus Operations Limited 110
#11 Mitsubishi Chemical Corporation 105
#12 Carbon, Inc. 104
#13 Arkema France 98
#14 Continuous Composites Inc. 95
#15 Sidel Participations S.a.s 87
#16 Compagnie Generale DES Etablissements Michelin 85
#17 Mitsubishi Gas Chemical Company, Inc. 78
#18 Borealis Ag 74
#19 Yoshino Kogyosho Co., Ltd. 73
#20 Abbott Cardiovascular Systems, Inc. 70

About This Class

CPC subclass B29K belongs to class B29.

22,850 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 B29K 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 B29K assignees by class footprint. Bubble size = patents in B29K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 B29K assignees by class footprint. Bubble size = patents in B29K. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 0200400600800 Patents in B29K Avg claims / patent (company-wide) The BoeingNikeThe Procter & GambleHewlett-packard Devel…Dow GlobalSabic Global B VToray IndustriesStratasysXeroxAirbus OperationsMitsubishi ChemicalCarbonArkema FranceContinuous Composites
Top 14 B29K assignees by class footprint. Bubble size = patents in B29K. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class B29K?
CPC subclass B29K covers INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS. It belongs to CPC class B29 (WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL), with 22,850 US utility patents granted since 2015.
How many patents have been filed in B29K?
22,850 US utility patents were granted in CPC subclass B29K between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in B29K?
The Boeing Company leads B29K with 618 patents, making it the most active assignee in this technology area.
How is patent data for B29K 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., B29) is a broad technology category. Subclasses like B29K 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.