Inventor

Herbert L Spangler

Inventor
Bethel, OH, US

Overview

2→
Patents
1982–2000
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F23Jprimary
F23JRemoval or treatment of combustion products or combustion residues33%
F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general33%
LOC0833%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to IND AIR INC (1)· patent assignee history
1982–2000Based in Bethel, OH, US· patent location history
2000Patents assigned to SPANGLER HERBERT L (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IND AIR INC11982
SPANGLER HERBERT Lself12000
Locations
LocationPatentsSpan
Bethel, OH, US21982–2000