LexDanaLexDanabeta
Inventor

JR., John H. CHASTAIN

Inventor
US

Overview

2→
Patents
2022–2025
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Dprimary
B01DSeparation40%
B04CApparatus using free vortex flow, e.g. cyclones20%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof20%
F24FAir-conditioning20%
PatentTitleYear
12,480,675Air filtration monitoring system with learning features202511,478,736Precleaner arrangement for use in air filtration and methods2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2025Patents assigned to DONALDSON CO INC (2)· patent assignee history
2022–2025Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DONALDSON CO INC22022–2025
Locations
LocationPatentsSpan
US22022–2025