Inventor
Randolph W. Huff
Inventor
Hartsdale, NY, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators44%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
A63HToys, e.g. tops, dolls, hoops or building blocks6%
PatentTitleYear
9,567,188'Absolute position door zone device'20178,733,507'Multicar zoned elevator system'20148,397,873'Zoned elevator system'20138,100,230'Elevator system with virtual landing'20127,841,450'Twin elevator systems'20107,334,665'Interlock wiring communication system for elevators'20087,246,689'Self-powered elevator button'20075,752,869'Toy construction set'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Based in New York, NY, US· patent location history
2007–2013Patents assigned to THYSSEN ELEVATOR CAPITAL CORP (3)· patent assignee history
2007–2014Based in Hartsdale, NY, US· patent location history
2012–2013Patents assigned to HUFF RANDOLPH W (2)· patent assignee history
2012–2013Patents assigned to PETERS RICHARD D (2)· patent assignee history
2012–2013Patents assigned to POWELL BRUCE (2)· patent assignee history
2012–2013Patents assigned to SMITH RORY S (2)· patent assignee history
2017Based in Irvington, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| THYSSEN ELEVATOR CAPITAL CORP | 3 | 2007–2013 |
| HUFF RANDOLPH Wself | 2 | 2012–2013 |
| PETERS RICHARD D | 2 | 2012–2013 |
| POWELL BRUCE | 2 | 2012–2013 |
| SMITH RORY S | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hartsdale, New York, US | 6 | 2007–2014 |
| Irvington, New York, US | 1 | 2017 |
| New York, New York, US | 1 | 1998 |