Inventor

David O. Keith

Inventor
American Fork, UT, US

Overview

19→
Patents
1995–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 19 as inventor

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

E04Cprimary
E04CStructural elements20%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges15%
B28BShaping clay or other ceramic compositions12%
B29CShaping or joining of plastics10%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts10%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
LOC087%
E04BGeneral building constructions3%
E04GScaffolding3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2000Patents assigned to H K COMPOSITES INC (10)· patent assignee history
1995–2020Based in American Fork, UT, US· patent location history
2005–2020Patents assigned to HK MARKETING LC (8)· patent assignee history
2005Patents assigned to H K MARKETING LLC (1)· patent assignee history
2019–2020Based in Lehi, UT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
H K COMPOSITES INC101995–2000
HK MARKETING LC82005–2020
H K MARKETING LLC12005
Locations
LocationPatentsSpan
American Fork, UT, US171995–2020
Lehi, UT, US22019–2020