Inventor

Donald N. Zimmer

Inventor

Marshalltown, IA, US

Overview

1997–2019

Patent span

Mechanical engineering

Primary field (CPC F)

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

F24Hprimary

F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general13%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%

B23PMetal-working not otherwise provided for10%

B29CShaping or joining of plastics10%

B29LIndexing scheme associated with subclass b29c, relating to particular articles10%

F23DBurners10%

F25DRefrigerators10%

Y10TTechnical subjects covered by former us classification10%

F04DNon-positive-displacement pumps3%

F24DDomestic- or space-heating systems, e.g. central heating systems3%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1997–2019Patents assigned to LENNOX IND INC (6)· patent assignee history

1997–2019Based in Marshalltown, IA, US· patent location history

2017–2018Patents assigned to ZIMMER DONALD N (2)· patent assignee history

2017Based in Carrollton, TX, US· patent location history

2018Patents assigned to CHERINGTON FLOYD E (1)· patent assignee history

2018Patents assigned to SMITH RANDY D (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Marshalltown, IA, US	5	1997–2019
Carrollton, Texas, US	1	2017