Growing community of inventors

Welney, United Kingdom

David Gregory Ahern

Average Co-Inventor Count = 4.26

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 = 216

David Gregory AhernRoger William Clarke (3 patents)David Gregory AhernChristopher James Smith (3 patents)David Gregory AhernStephen William Eason (3 patents)David Gregory AhernQuentin John Harmer (3 patents)David Gregory AhernSimon James Smith (3 patents)David Gregory AhernMatthew Neil Sarkar (3 patents)David Gregory AhernMax Middleton (3 patents)David Gregory AhernJames Tibbatts (7 patents)David Gregory AhernSameer Shirgaonkar (3 patents)David Gregory AhernPeter Alan Evans (3 patents)David Gregory AhernSimon Burge (3 patents)David Gregory AhernBen Arlett (3 patents)David Gregory AhernEmma Lesley Lye (3 patents)David Gregory AhernJohn Pinon (3 patents)David Gregory AhernRobin Craig Cocker (2 patents)David Gregory AhernTim Evans (1 patent)David Gregory AhernEwen Christie (1 patent)David Gregory AhernArron Danson (1 patent)David Gregory AhernJames Tibatts (1 patent)David Gregory AhernAndreas Mehne (1 patent)David Gregory AhernMargaret Crosthwaite (1 patent)David Gregory AhernSimon Smith (1 patent)David Gregory AhernMax William Middleton (0 patent)David Gregory AhernDavid Gregory Ahern (10 patents)Roger William ClarkeRoger William Clarke (59 patents)Christopher James SmithChristopher James Smith (44 patents)Stephen William EasonStephen William Eason (30 patents)Quentin John HarmerQuentin John Harmer (28 patents)Simon James SmithSimon James Smith (24 patents)Matthew Neil SarkarMatthew Neil Sarkar (17 patents)Max MiddletonMax Middleton (11 patents)James TibbattsJames Tibbatts (7 patents)Sameer ShirgaonkarSameer Shirgaonkar (7 patents)Peter Alan EvansPeter Alan Evans (7 patents)Simon BurgeSimon Burge (5 patents)Ben ArlettBen Arlett (4 patents)Emma Lesley LyeEmma Lesley Lye (3 patents)John PinonJohn Pinon (3 patents)Robin Craig CockerRobin Craig Cocker (4 patents)Tim EvansTim Evans (5 patents)Ewen ChristieEwen Christie (2 patents)Arron DansonArron Danson (2 patents)James TibattsJames Tibatts (1 patent)Andreas MehneAndreas Mehne (1 patent)Margaret CrosthwaiteMargaret Crosthwaite (1 patent)Simon SmithSimon Smith (1 patent)Max William MiddletonMax William Middleton (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Chiesi Farmaceutici S.p.a. (3 from 330 patents)

2. Vectura Delivery Devices Limited (3 from 52 patents)

3. Covidien LP (2 from 7,927 patents)

4. Orange Personal Communications Services Limited (1 from 23 patents)

5. Alfred E. Tiefenbacher Gmbh & Co. Kg (1 from 10 patents)


10 patents:

1. 11020549 - Dry powder inhaler with reproducible flow resistance

2. 9549722 - Thoracic access port including foldable anchor

3. 9119665 - Thoracic access port including foldable anchor

4. 8997737 - Inhaler

5. 8443798 - Inhaler

6. 7950389 - Inhaler

7. 7854226 - Powder inhaler

8. 7107988 - Powder inhaler

9. D499802 - Powder inhaler

10. D472550 - Mobile terminal with video display

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as of
12/31/2025
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