LexDanaLexDanabeta
Inventor

Keith A. Ballard

Inventor
Ellicott City, MD, US

Overview

6→
Patents
1994–2002
Patent span
Performing operations
Primary field (CPC B)

Patents· 6 as inventor

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

LOC14primary
LOC1443%
B05BSpraying apparatus14%
B08BCleaning in general14%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for14%
B63BShips or other waterborne vessels14%
PatentTitleYear
D0463407'Speaker'2002D0448360'Portion of a speaker'2001D0440559'Portion of a speaker'20015,975,423'Portable fully self-contained pressure wash-down system and method'1999D0351839'Speaker'1994D0351388'Combined speaker and integral stand'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to POLK INVEST CORPORATION (2)· patent assignee history
1994Based in Baltimore, MD, US· patent location history
1999Based in Woodstock, GA, US· patent location history
2001–2002Patents assigned to BRITANNIA INVEST CORP (3)· patent assignee history
2001–2002Based in Ellicott City, MD, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRITANNIA INVEST CORP32001–2002
POLK INVEST CORPORATION21994
Locations
LocationPatentsSpan
Ellicott City, Maryland, US32001–2002
Baltimore, Maryland, US21994
Woodstock, Georgia, US11999