Inventor
Robert John Leedham
Inventor
Cambridge, GB
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them18%
F03GSpring, weight, inertia or like motors15%
G02BOptical elements, systems or apparatus15%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%
H04NPictorial communication, e.g. television12%
H03KPulse technique9%
G05BControl or regulating systems in general3%
G06FElectric digital data processing3%
H03FAmplifiers3%
H04LTransmission of digital information, e.g. telegraphic communication3%
PatentTitleYear
10,230,354Voltage balancing in series-connected power switches201910,199,916Resistor emulation and gate boost201910,069,431Low-skew communication system20189,762,114'Synchronizing parallel power switches'20179,479,699'Shape memory alloy actuation apparatus'20168,848,064'Optical image stabilization comprising shape memory alloy actuators'20148,756,933'Control of a shape memory alloy actuation apparatus'20148,448,435'Control of a shape memory alloy actuation arrangement'20138,446,475'Shape memory alloy actuation apparatus'20138,350,959'Camera lens actuation apparatus'20136,882,219'High frequency switch-mode power amplifier'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2019Based in Cambridge, GB· patent location history
2013–2016Patents assigned to LEEDHAM ROBERT JOHN (6)· patent assignee history
2013–2016Patents assigned to CAMBRIDGE MECHATRONICS LTD (5)· patent assignee history
2013–2014Patents assigned to TOPLISS RICHARD (5)· patent assignee history
2013–2014Patents assigned to GREGORY THOMAS MATTHEW (3)· patent assignee history
2017–2019Patents assigned to REINHAUSEN MASCHF SCHEUBECK (4)· patent assignee history
2019Based in Regensburg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LEEDHAM ROBERT JOHNself | 6 | 2013–2016 |
| CAMBRIDGE MECHATRONICS LTD | 5 | 2013–2016 |
| TOPLISS RICHARD | 5 | 2013–2014 |
| REINHAUSEN MASCHF SCHEUBECK | 4 | 2017–2019 |
| GREGORY THOMAS MATTHEW | 3 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cambridge, GB | 10 | 2005–2019 |
| Regensburg, DE | 1 | 2019 |