Inventor
Nathan Ritchie
Inventor
Columbus, IN, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids23%
Y10TTechnical subjects covered by former us classification23%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines15%
F02BInternal-combustion piston engines15%
F16HGearing15%
B60TVehicle brake control systems or parts thereof8%
PatentTitleYear
5,997,260'Air compressor engine barring adaptor'19995,882,181'Barring adaptor for an engine air compressor'19995,277,560'Ring valve type air compressor with deformable ring valves'19945,213,487'Ring valve type air compressor with deformable ring valves'19935,022,832'Ring valve type air compressor'19914,993,922'Air compressor unloader system'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1994Patents assigned to HOLSET ENGINEERING CO (4)· patent assignee history
1991–1999Based in Columbus, IN, US· patent location history
1999Patents assigned to CUMMINS ENGINE CO INC (1)· patent assignee history
1999Patents assigned to CUMMINS ENGINE CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOLSET ENGINEERING CO | 4 | 1991–1994 |
| CUMMINS ENGINE CO INC | 1 | 1999 |
| CUMMINS ENGINE CO LTD | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Columbus, IN, US | 6 | 1991–1999 |