Where it is examined
Topic
Cylinder head Steady
671 applications whose title mentions it. Its share of new filings over the last two years is -45% below the four years before.
Allowance rate
77%
+2 pts vs the USPTO 659 decided
Months to first action
18.5 mo
−0.1 vs the USPTO
Applications
671.0
in the record
Allowed
508.0
151 abandoned
Filings by year
How often the topic was filed
The most recent years are still filling in.
Examiners
Who examines it, and how it fares with each
Bars show the share of decided applications that were allowed.
Who files it
Companies and institutions
Bars show the share of decided applications that were allowed.
Who represents them
Law firms and agents
Bars show the share of decided applications that were allowed.
Applications
Recent applications on this topic
| Application | Title | Filed | Status | Rejections | RCEs | To 1st action |
|---|---|---|---|---|---|---|
| 19621434 | ARRANGEMENT COMPRISING A CYLINDER HEAD AND A SPARK PLUG FOR A SPARK IGNITION ENGINE | 2026-09-04 | Pending | 0 | 0 | n/a |
| 19592432 | CYLINDER HEAD ASSEMBLIES AND SPARK PLUGS CONFIGURED TO PURGE GAS RESIDUALS FOR PRE-… | 2026-06-01 | Pending | 0 | 0 | n/a |
| 19526085 | A PULSATING FLUE GASES GENERATION APPARATUS WITH A DISCHARGE VALVE AFFIXED TO ITS C… | 2026-04-06 | Pending | 0 | 0 | n/a |
| 15663870 | Method and apparatus for adaptive signal processing | 2012-01-10 | Allowed | 1 | 0 | 12.0 mo |
| 15198343 | Composition and method for controlled release | 2015-02-11 | Abandoned | 4 | 1 | 23.0 mo |
| 15438862 | Distributed ledger transaction verification | 2018-03-12 | Allowed | 3 | 0 | 20.0 mo |
| 15868455 | Thermal management of battery assemblies | 2021-04-13 | Pending | 2 | 1 | 17.0 mo |
| 15283058 | Machine learning model for anomaly detection | 2012-05-14 | Allowed | 1 | 0 | 14.0 mo |
| 15726885 | Wireless power transfer coil arrangement | 2015-06-15 | Abandoned | 4 | 1 | 25.0 mo |
| 15246066 | Catalyst for selective hydrogenation | 2018-07-16 | Allowed | 3 | 0 | 22.0 mo |