DEWHURST PLC has a total of 28 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United Kingdom, Canada and Hong Kong. Its main competitors in its focus markets electrical machinery and energy, audio-visual technology and mechanical elements are RUSSENBERGER VICTOR, GRUNER KG RELAIS FABRIK and SHENYANG HUADE HIGH TECH ELECTRIC CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United Kingdom | 20 | |
#2 | Canada | 3 | |
#3 | Hong Kong | 3 | |
#4 | Singapore | 1 | |
#5 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Audio-visual technology | |
#3 | Mechanical elements | |
#4 | Packaging and shipping | |
#5 | Machines | |
#6 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Electric switches | |
#2 | Advertising | |
#3 | Mechanical control devices | |
#4 | Elevators and escalators | |
#5 | Shaping of plastics | |
#6 | Springs | |
#7 | Safety devices | |
#8 | Wing fittings | |
#9 | Indexing scheme relating to hinges | |
#10 | Special electric heating or lighting |
# | Name | Total Patents |
---|---|---|
#1 | Dewhurst Alan | 7 |
#2 | Dewhurst David | 3 |
#3 | Edwards James Frederick | 3 |
#4 | Dewhurst Richard Melbourne | 2 |
#5 | Young Arthur David | 2 |
#6 | Hutchinson Stephen Peter | 1 |
#7 | Reid Eamonn | 1 |
#8 | Dewhurst Richard M | 1 |
#9 | Edwards James F | 1 |
#10 | Cantillon Kevin Martin | 1 |
Publication | Filing date | Title |
---|---|---|
GB0520206D0 | Sensor system | |
GB0124980D0 | Switch | |
HK1011787A1 | Light display and methods of forming the same | |
GB9706462D0 | Improvements in or relating to indicating devices | |
GB9703272D0 | Improvements in or relating to push buttons | |
GB9607245D0 | Improvements in or relating to indicating devices | |
GB9520073D0 | Light display and method of forming the same | |
GB9520072D0 | Indicators and push-button members and method of forming the same | |
GB9409347D0 | Improvements in or relating to control switches | |
GB9310265D0 | Improvement in or relating to indicators and pushbuttons | |
GB9221735D0 | Method and apparatus of operating an automatic door and bushbutton apparatus therefor | |
GB9221733D0 | Improvements in or relating to keypad assemblies | |
GB9119454D0 | Push button switch | |
GB9016744D0 | Snap action switch | |
GB8926839D0 | Electrical push-button switch | |
GB8611525D0 | Light emitting diode operating circuit |