Growing community of inventors

London, United Kingdom

David Crisp

Average Co-Inventor Count = 1.10

ph-index = 7

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 = 124

David CrispDavid K Thompson (1 patent)David CrispKevin Thompson (1 patent)David CrispDavid Crisp (11 patents)David K ThompsonDavid K Thompson (3 patents)Kevin ThompsonKevin Thompson (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Rizla Limited (4 from 14 patents)

2. Itw Limited (3 from 98 patents)

3. Micralite Limited (2 from 2 patents)

4. Other (1 from 832,718 patents)

5. E.j. Brooks Company (1 from 96 patents)


11 patents:

1. 10913576 - Tamper evident locking device

2. 8366141 - Transporter

3. 6918608 - Collapsible pushchair/carrier

4. 6918620 - Locking device

5. 6908125 - Pressure actuated locking device

6. 6803674 - Lock system

7. 6749235 - Pressure actuated locking device

8. 4303082 - Manually operated cigarette making machine

9. 4230132 - Cigarette making machine

10. D256168 - Cigarette making machine

11. 4102634 - Floating wick holder

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idiyas.com
as of
12/12/2025
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