Growing community of inventors

Ottawa, Canada

David A Nogas

Average Co-Inventor Count = 1.27

ph-index = 8

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 = 159

David A NogasMichael George Langlois (2 patents)David A NogasJohn A Mahan (2 patents)David A NogasChris Gorman (2 patents)David A NogasMichael S McGuire (1 patent)David A NogasWilli Lotz (1 patent)David A NogasMichael G Emler (1 patent)David A NogasHans Beisner (1 patent)David A NogasDavid A Nogas (17 patents)Michael George LangloisMichael George Langlois (41 patents)John A MahanJohn A Mahan (8 patents)Chris GormanChris Gorman (6 patents)Michael S McGuireMichael S McGuire (10 patents)Willi LotzWilli Lotz (3 patents)Michael G EmlerMichael G Emler (1 patent)Hans BeisnerHans Beisner (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitel Corporation (17 from 307 patents)

2. Trillium Telephone Systems Inc. (1 from 13 patents)


17 patents:

1. 6351535 - Variable angle mechanism for desktop telephone

2. D448746 - Telephone attendant console

3. D423497 - Telephone set

4. D421264 - Telephone set

5. D393645 - Telephone handset

6. 5677830 - Modular, stacking, expandable electronic enclosure system

7. D381319 - Modular, stacking, electronic enclosure system

8. D373758 - Combined connection cabinet and printed circuit board housings

9. D360628 - Equipment cabinet front panel

10. D354487 - Telephone set

11. D354042 - Housing for a plug-in printed circuit board

12. D340052 - Telephone base

13. D338890 - Telephone handset

14. D338462 - Telephone base

15. D300925 - Telephone set with display

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as of
1/2/2026
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