Inventor
David Charles William Richards
Inventor
Cambridge, GB
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B65Fprimary
B65FGathering or removal of domestic or like refuse17%
B65BMachines, apparatus or devices for, or methods of, packaging articles or materials13%
F03GSpring, weight, inertia or like motors13%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them13%
G02BOptical elements, systems or apparatus7%
H03HImpedance networks, e.g. resonant circuits7%
H04NPictorial communication, e.g. television7%
A01GHorticulture3%
A22CProcessing meat, poultry, or fish3%
A61JContainers specially adapted for medical or pharmaceutical purposes3%
PatentTitleYear
9,388,799'Drive circuit for actuating a shape-memory alloy actuator'20168,756,933'Control of a shape memory alloy actuation apparatus'20148,594,350'Set-up method for array-type sound system'20138,448,435'Control of a shape memory alloy actuation arrangement'20138,446,475'Shape memory alloy actuation apparatus'20136,994,247'Waste storage device'20066,786,345'Feeding bottles'20046,719,194'Waste storage device'20046,581,080'Digital filters'20036,405,230'Digital filter'20025,590,512'Apparatus for using packs of flexible tubing in packaging'19975,056,293'Apparatus for producing layered tubes or rings'19914,934,529'Cassette containing flexible tubing to be dispensed therefrom'19904,869,049'Apparatus and methods for using packs of flexible tubing in packaging'19894,149,339'Hanging plant holder'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1991Based in Wokingham, GB· patent location history
1997–2006Patents assigned to MELROSE PRODUCTS LTD (3)· patent assignee history
2002–2003Based in Stockbridge, GB· patent location history
2004–2006Based in Lymington, GB· patent location history
2013–2016Patents assigned to CAMBRIDGE MECHATRONICS LTD (4)· patent assignee history
2013–2014Patents assigned to RICHARDS DAVID CHARLES WILLIAM (4)· patent assignee history
2013–2014Patents assigned to GREGORY THOMAS MATTHEW (3)· patent assignee history
2013–2014Patents assigned to LEEDHAM ROBERT JOHN (3)· patent assignee history
2013–2016Based in Cambridge, GB· patent location history
2013–2014Based in Milton Keynes, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CAMBRIDGE MECHATRONICS LTD | 4 | 2013–2016 |
| RICHARDS DAVID CHARLES WILLIAMself | 4 | 2013–2014 |
| GREGORY THOMAS MATTHEW | 3 | 2013–2014 |
| LEEDHAM ROBERT JOHN | 3 | 2013–2014 |
| MELROSE PRODUCTS LTD | 3 | 1997–2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cambridge, GB | 3 | 2013–2016 |
| Lymington, GB | 3 | 2004–2006 |
| Wokingham, GB | 3 | 1989–1991 |
| Milton Keynes, GB | 2 | 2013–2014 |
| Stockbridge, GB | 2 | 2002–2003 |