Inventor

David B. Allen

Inventor

Oviedo, FL, US

Overview

1997–2020

Patent span

Mechanical engineering

Primary field (CPC F)

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

F01Dprimary

F01DNon-positive displacement machines or engines, e.g. steam turbines20%

Y10TTechnical subjects covered by former us classification20%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants13%

C23CCoating metallic material10%

B23PMetal-working not otherwise provided for5%

B23KSoldering or unsoldering3%

A61KPreparations for medical, dental or toiletry purposes2%

A61QSpecific use of cosmetics or similar toiletry preparations2%

B05DProcesses for applying fluent materials to surfaces, in general2%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1997Based in Linesville, PA, US· patent location history

2002–2005Patents assigned to SIEMENS WESTINGHOUSE POWER (4)· patent assignee history

2002–2015Based in Oviedo, FL, US· patent location history

2009–2015Patents assigned to SIEMENS ENERGY INC (12)· patent assignee history

2012–2020Patents assigned to ALLEN DAVID B (7)· patent assignee history

2012Patents assigned to ALLEN DAVID BLAIR (1)· patent assignee history

2012Based in Franklin, TN, US· patent location history

2013–2015Patents assigned to HUNT DAVID W (2)· patent assignee history

2020Based in Newport News, VA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations