Inventor

Donald J. Ehrlich

Inventor

Lafayette, IN, US

Overview

10→

Patents

1981–2009

Patent span

Performing operations

Primary field (CPC B)

Patents· 10 as inventor

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

B61Dprimary

B61DBody details or kinds of railway vehicles25%

B60TVehicle brake control systems or parts thereof10%

B62DMotor vehicles10%

A47BTables5%

B60GVehicle suspension arrangements5%

B60WConjoint control of vehicle sub-units of different type or different function5%

E05DHinges or suspension devices for doors, windows or wings5%

E05FDevices for moving wings into open or closed position5%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof5%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges5%

PatentTitleYear

7,472,972'Filing cabinet having a fireproof retractable door'2009 6,675,640'Axle end wheel sensor for a vehicle, such as a truck or a trailer'2004 6,264,286'Control module for a brake system for a semi-trailer'2001 5,832,836'Modular articulated railcar'1998 5,685,228'Bi-tri-level deck system for a railcar'1997 5,622,115'Modular articulated railcar'1997 5,601,033'Door structure for a railcar in an articulated train'1997 4,703,948'Trailer floor assembly'1987 4,455,807'Splice rail assembly'1984 4,281,870'Vehicle convertible double deck system'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to EVANS PROD CO (2)· patent assignee history

1981–1984Based in Monon, IN, US· patent location history

1987–1998Patents assigned to WABASH NATIONAL CORP (5)· patent assignee history

1987–2009Based in Lafayette, IN, US· patent location history

2001–2004Patents assigned to WABASH TECHNOLOGY CORP (2)· patent assignee history

2009Patents assigned to SCHWAB CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WABASH NATIONAL CORP	5	1987–1998
EVANS PROD CO	2	1981–1984
WABASH TECHNOLOGY CORP	2	2001–2004
SCHWAB CORP	1	2009

Locations

Location	Patents	Span
Lafayette, IN, US	8	1987–2009
Monon, IN, US	2	1981–1984