Inventor
Ronald E. Marker
Inventor
New Lebanon, OH, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids25%
Y10TTechnical subjects covered by former us classification25%
B21KMaking forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels8%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids8%
F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines8%
F16JPistons8%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
8,573,074'Vehicle mounted soil sampler'20135,218,763'Method for manufacturing a swaged piston assembly for an automotive air conditioning compressor'19935,201,646'Scroll compressor eccentric bushing retainer'19934,683,803'Swash plate compressor having integral shoe and ball'19874,617,856'Swash plate compressor having integral shoe and ball'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1993Patents assigned to GEN MOTORS CORP (4)· patent assignee history
1986–1993Based in New Lebanon, OH, US· patent location history
2013Patents assigned to MARKER RONALD (1)· patent assignee history
2013Based in Akron, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN MOTORS CORP | 4 | 1986–1993 |
| MARKER RONALDself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Lebanon, OH, US | 4 | 1986–1993 |
| Akron, MI, US | 1 | 2013 |