Inventor

David D. Brengel

Inventor
Schnecksville, PA, US

Overview

4→
Patents
1996–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B01Dprimary
B01DSeparation27%
C01BNon-metallic elements18%
A61BDiagnosis9%
A61MDevices for introducing media into, or onto, the body9%
B05BSpraying apparatus9%
B05CApparatus for applying fluent materials to surfaces, in general9%
F17CVessels for containing or storing compressed, liquefied or solidified gases9%
Y02PClimate change mitigation technologies in the production or processing of goods9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2008Patents assigned to AIR PROD & CHEM (3)· patent assignee history
1996–2008Based in Schnecksville, PA, US· patent location history
2021Patents assigned to AIRGAS INC (1)· patent assignee history
2021Based in Farmington, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AIR PROD & CHEM31996–2008
AIRGAS INC12021
Locations
LocationPatentsSpan
Schnecksville, Pennsylvania, US31996–2008
Farmington, CT, US12021