Growing community of inventors

Waterloo, Canada

David Castell

Average Co-Inventor Count = 4.18

ph-index = 5

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 705

David CastellMihal Lazaridis (6 patents)David CastellGary P Mousseau (5 patents)David CastellBarry W Linkert (5 patents)David CastellTabitha Ferguson (5 patents)David CastellRaymond Vander Veen (4 patents)David CastellNeil Adams (4 patents)David CastellIan Patterson (4 patents)David CastellDavid Yach (4 patents)David CastellMichael K Brown (4 patents)David CastellNeil Patrick Adams (3 patents)David CastellMichael Kenneth Brown (3 patents)David CastellDavid Paul Yach (3 patents)David CastellIan M Patterson (3 patents)David CastellEric Chan (2 patents)David CastellRaymond Paul Vander Veen (1 patent)David CastellJulian Paas (1 patent)David CastellPeter Hantzakos (1 patent)David CastellPiotr Calak (1 patent)David CastellPeter Calak (1 patent)David CastellRichard John George (54 patents)David CastellDouglas Michael Gisby (44 patents)David CastellNicholas Alfano (30 patents)David CastellJan John-Luc Bakker (10 patents)David CastellDavid Lloyd Heit (5 patents)David CastellIan Mcdonald (0 patent)David CastellNicholas Alfano (0 patent)David CastellJulian Pass (0 patent)David CastellDouglas Gisby (0 patent)David CastellEric Chan (0 patent)David CastellDavid Castell (11 patents)Mihal LazaridisMihal Lazaridis (284 patents)Gary P MousseauGary P Mousseau (118 patents)Barry W LinkertBarry W Linkert (30 patents)Tabitha FergusonTabitha Ferguson (20 patents)Raymond Vander VeenRaymond Vander Veen (6 patents)Neil AdamsNeil Adams (44 patents)Ian PattersonIan Patterson (9 patents)David YachDavid Yach (16 patents)Michael K BrownMichael K Brown (66 patents)Neil Patrick AdamsNeil Patrick Adams (455 patents)Michael Kenneth BrownMichael Kenneth Brown (286 patents)David Paul YachDavid Paul Yach (158 patents)Ian M PattersonIan M Patterson (54 patents)Eric ChanEric Chan (6 patents)Raymond Paul Vander VeenRaymond Paul Vander Veen (86 patents)Julian PaasJulian Paas (21 patents)Peter HantzakosPeter Hantzakos (3 patents)Piotr CalakPiotr Calak (1 patent)Peter CalakPeter Calak (2 patents)Richard John GeorgeRichard John George (54 patents)Douglas Michael GisbyDouglas Michael Gisby (44 patents)Nicholas AlfanoNicholas Alfano (30 patents)Jan John-Luc BakkerJan John-Luc Bakker (10 patents)David Lloyd HeitDavid Lloyd Heit (5 patents)Ian McdonaldIan Mcdonald (0 patent)Nicholas AlfanoNicholas Alfano (0 patent)Julian PassJulian Pass (0 patent)Douglas GisbyDouglas Gisby (0 patent)Eric ChanEric Chan (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Research in Motion Corporation (8 from 4,495 patents)

2. Blackberry Corporation (3 from 5,892 patents)

3. Michael K. Brown (0 patent)

4. David Yach (0 patent)

5. Neil Adams (0 patent)

6. David Castell (0 patent)

7. Ian Patterson (0 patent)


11 patents:

1. 9390413 - System and method for making electronic payments from a wireless mobile device

2. 8788515 - Method for modifying notifications in an electronic device

3. 8539553 - System and method for managing delivery of internet content

4. 8306989 - Method for modifying notifications in an electronic device

5. 8060413 - System and method for making electronic payments from a wireless mobile device

6. 8060564 - System and method for pushing information from a host system to a mobile data communication device

7. 8024416 - System and method for bundling information

8. 7873646 - Method for modifying notifications in an electronic device

9. 7734281 - System and method for bundling information

10. 7266365 - System and method for delayed transmission of bundled command messages

11. 6779019 - System and method for pushing information from a host system to a mobile data communication device

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as of
12/17/2025
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