Inventor
Robert K. Hughes, Sr.
Inventor
Fort Myers, FL, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E01Fprimary
E01FAdditional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like33%
G01CMeasuring distances, levels or bearings17%
A01KAnimal husbandry8%
A63CSkates8%
E02BHydraulic engineering8%
Y02ATechnologies for adaptation to climate change8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
6,732,673'Drivable post and marker'20046,604,485'Drivable post and marker'20036,109,820'Anchor base for flexible marker'20005,454,665'Artificial reef'19955,452,965'Replaceable flexible marker'19955,197,819'Mounting base for highway markers'19934,903,465'Mower guard for flexible markers'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2004Patents assigned to FLEXSTAKE INC (7)· patent assignee history
1990–2004Based in Fort Lauderdale, FL, US· patent location history
1995–2003Based in Fort Myers, FL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FLEXSTAKE INC | 7 | 1990–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fort Myers, Florida, US | 4 | 1995–2003 |
| Fort Lauderdale, Florida, US | 3 | 1990–2004 |