LexDanaLexDanabeta
Inventor

JOHN ALLEN ARMSTRONG

Inventor
US

Overview

4→
Patents
2023–2025
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E01Cprimary
E01CConstruction of, or surfaces for, roads, sports grounds, or the like40%
E04FFinishing work on buildings, e.g. stairs, floors20%
E04GScaffolding20%
F16DCouplings for transmitting rotation20%
PatentTitleYear
12,241,210Cordless electrically-powered concrete screed202512,195,932Modular concrete screed system202511,753,779Modular concrete screed system202311,725,349Cordless electrically-powered concrete screed2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023–2025Patents assigned to Curb Roller LLC (4)· patent assignee history
2023–2025Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
Curb Roller LLC42023–2025
Locations
LocationPatentsSpan
US42023–2025