CPC technology class · F02

F02P - Ignition

Ignition, other than compression ignition, for internal-combustion engines; testing of ignition timing in compression-ignition engines. 2,762 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

2,762
US patents granted: #7/9
in F02: 3.8%
F02 class share: -30%
5-yr velocity

The verdict

According to USPTO PatentsView, Ignition ranks #332 of 670 CPC technology areas - 2,762 US patents granted since 2015, with recorded grant volume down 30% over five years.

#332
of 670 CPC technology areas: 2,762
US patents granted, 2015–2025: Ford Global
leading assignee (378): -30%
grant velocity, last 5 yrs

How F02P's grant cadence moved

Between 2020–2024, F02P recorded 1,067 grants versus 1,519 in 2015–2019 (-30% equal-window velocity). Across complete years, output peaked in 2018 at 363 grants and bottomed in 2024 at 121 (+200% peak-over-trough). Lead assignee Mazda Motor Corporation holds 4.6% of the class ; the top three share 8.7%.

Leaderboard read

F02P concentration, lead at 4.6%

Mazda Motor Corporation leads this historical grant record at 4.6% of F02P - foreign corporation assignees hold 62% of class grants (508 of 813). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 4.6%
Top three share: 8.7%
Lead over #2: 66

Where F02P sits inside F02

Among 9 subclasses in F02 (Combustion ENGINES; Hot-gas OR Combustion-product Engine Plants), F02P ranks #7 and holds 3.8% of the parent class's 73,441 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

F02D 16,949 F02C 16,237 F02M 13,937 F02B 11,001 F02K 5,533 F02N 3,467 F02F 2,743 F02G 812

Rising assignees active in F02P

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 Diamond & Zebra Electric MFG. Co., Ltd. 9.00x 0 → 9 company-wide · 6 in F02P
#2 Eldor Corporation S.P.A. 2.00x 6 → 12 company-wide · 11 in F02P
#3 Caterpillar Energy Solutions GmbH 1.88x 8 → 15 company-wide · 9 in F02P
#4 SEM AB 1.50x 2 → 3 company-wide · 11 in F02P
#5 Yamabiko Corporation 1.29x 31 → 40 company-wide · 9 in F02P

F02P grants by year, peak 2018 (363)

US utility-patent grants per year in F02P, 2015–2025 - recent five years are down 30% versus 2015–2019.

Mazda Motor

128
Ngk Spark Plug

62
Cummins

51
Tula etechnology

47
Borgwarner Ludwigsburg

45
Imagineering

36
Briggs & Stratton

27
Woodward

24
Federal-mogul Ignition

20
Innio Jenbacher & Og

19
Walbro

17
Andreas Stihl & Kg

16

What this shows Ford Global is the most active filer in F02P, holding 378 of the 2,762 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

View data table

Top patent holders in CPC subclass F02P
Rank	Company	Patents in F02P
#1	Mazda Motor Corporation	128
#2	NGK Spark Plug Co., Ltd.	62
#3	Cummins Inc.	51
#4	Tula eTechnology, Inc.	47
#5	BorgWarner Ludwigsburg GmbH	45
#6	Imagineering, Inc.	36
#7	Briggs & Stratton, LLC	27
#8	Woodward, Inc.	24
#9	Federal-mogul Ignition GMBH	20
#10	Innio Jenbacher GmbH & Co OG	19
#11	Walbro LLC	17
#12	Andreas Stihl AG & Co. KG	16
#13	Ethanol Boosting Systems, LLC	15
#14	Tenneco GmbH	11
#15	Eldor Corporation S.P.A.	11
#16	Borgwarner Beru Systems GMBH	11
#17	SEM AB	11
#18	GE Jenbacher GmbH Co OG	10
#19	Prometheus Applied Technologies LLC	10
#20	Southwest Research Institute	9

Footprint here vs. claim strategy

Each dot is a leading F02P 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 F02P assignees by class footprint. Bubble size = patents in F02P. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near F02P's 2,762-grant footprint

Nationwide nearest neighbors for F02P (#332 of 670 by volume ; lead share 13.7%) - not the F02 parent-class siblings above.

Nearest by grant volume

G07G 2,768 B42D 2,774 F02F 2,743 G03H 2,738

Nearest by lead-assignee share

A41F 13.6% C11D 13.4% G04G 13.4% A24F 14.1%

Questions about F02P

Which company holds the most patents in F02P?

Ford Global Technologies, LLC leads F02P with 378 patents (4.6% of the subclass). By PatentsView assignee type, foreign corporations account for 62% of class grants.

Which F02P assignees grew fastest recently?

Among assignees with ≥5 grants in F02P, Diamond & Zebra Electric MFG. Co., Ltd. shows the highest company-wide grant multiple (9.00x: 0 grants in 2019–2021 → 9 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.

How does F02P compare inside parent class F02?

Inside F02 (Combustion ENGINES; Hot-gas OR Combustion-product Engine Plants), F02P ranks #7 of 9 subclasses by grant volume and holds 3.8% of the parent class total. The largest sibling is F02D (16,949 grants).

What to do with this data

F02P in context - here's where to go next.

Mazda Motor Corporation leads F02P with 128 grants in this class. See full portfolio
F02P ranks #332 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class F02, the largest sibling subclass is F02D with 16,949 grants. Explore F02D

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

Methodology - F02P figures are USPTO PatentsView granted-utility totals for this subclass (2,762 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.