Growing community of inventors

Waterloo, Canada

David Lloyd Heit

Average Co-Inventor Count = 3.79

ph-index = 3

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 = 32

David Lloyd HeitDouglas Michael Gisby (3 patents)David Lloyd HeitIan James McDonald (3 patents)David Lloyd HeitNicholas Alfano (2 patents)David Lloyd HeitJan Hendrik Lucas Bakker (1 patent)David Lloyd HeitRichard John George (1 patent)David Lloyd HeitNicholas Alfano (1 patent)David Lloyd HeitAtul Asthana (1 patent)David Lloyd HeitNicholas Patrick Alfano (1 patent)David Lloyd HeitWilliam David Castell (1 patent)David Lloyd HeitDavid Castell (1 patent)David Lloyd HeitAlan Panezic (1 patent)David Lloyd HeitGregory Scott Henderson (1 patent)David Lloyd HeitBrian Oliver (1 patent)David Lloyd HeitEric Martin Ritter (1 patent)David Lloyd HeitAlan Panezio (1 patent)David Lloyd HeitDouglas Dean Metcalf (1 patent)David Lloyd HeitJames Misasi (1 patent)David Lloyd HeitIan J Mcdonald (1 patent)David Lloyd HeitAlan Tom Panezic (1 patent)David Lloyd HeitIan Macdonald (1 patent)David Lloyd HeitAtul Ashtana (1 patent)David Lloyd HeitIan Mcdonald (1 patent)David Lloyd HeitJohn-Luc Bakker (1 patent)David Lloyd HeitJan John-Luc Bakker (1 patent)David Lloyd HeitDouglas Gisby (1 patent)David Lloyd HeitDouglas Dean Metcalf (1 patent)David Lloyd HeitDouglas Michael Gisby (1 patent)David Lloyd HeitJan Bakker (0 patent)David Lloyd HeitDavid Lloyd Heit (5 patents)Douglas Michael GisbyDouglas Michael Gisby (44 patents)Ian James McDonaldIan James McDonald (9 patents)Nicholas AlfanoNicholas Alfano (4 patents)Jan Hendrik Lucas BakkerJan Hendrik Lucas Bakker (120 patents)Richard John GeorgeRichard John George (54 patents)Nicholas AlfanoNicholas Alfano (30 patents)Atul AsthanaAtul Asthana (28 patents)Nicholas Patrick AlfanoNicholas Patrick Alfano (19 patents)William David CastellWilliam David Castell (13 patents)David CastellDavid Castell (11 patents)Alan PanezicAlan Panezic (9 patents)Gregory Scott HendersonGregory Scott Henderson (9 patents)Brian OliverBrian Oliver (7 patents)Eric Martin RitterEric Martin Ritter (2 patents)Alan PanezioAlan Panezio (1 patent)Douglas Dean MetcalfDouglas Dean Metcalf (1 patent)James MisasiJames Misasi (1 patent)Ian J McdonaldIan J Mcdonald (2 patents)Alan Tom PanezicAlan Tom Panezic (2 patents)Ian MacdonaldIan Macdonald (1 patent)Atul AshtanaAtul Ashtana (2 patents)Ian McdonaldIan Mcdonald (3 patents)John-Luc BakkerJohn-Luc Bakker (1 patent)Jan John-Luc BakkerJan John-Luc Bakker (5 patents)Douglas GisbyDouglas Gisby (3 patents)Douglas Dean MetcalfDouglas Dean Metcalf (1 patent)Douglas Michael GisbyDouglas Michael Gisby (1 patent)Jan BakkerJan Bakker (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Blackberry Corporation (4 from 5,890 patents)

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


5 patents:

1. 9876904 - Method and system for communicating and displaying data with a voice call

2. 9537866 - Method and apparatus to control the use of applications based on network service

3. 8798586 - Apparatus, and associated method, for providing enterprise-controlled voice services to wireless devices

4. 8798605 - System and method for transferring an ongoing communication from a wireless handheld telephony device

5. 8265589 - Method and system for the collection of voice call statistics for a mobile device

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as of
12/7/2025
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