Growing community of inventors

Carmarthen, United Kingdom

Margaret P Richardson

Average Co-Inventor Count = 2.00

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 = 564

Margaret P RichardsonPhilip Richardson (7 patents)Margaret P RichardsonMargaret P Richardson (7 patents)Philip RichardsonPhilip Richardson (11 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (6 from 832,718 patents)

2. Chartex International Plc (1 from 8 patents)


7 patents:

1. 5817365 - Production of rubber articles, such as gloves

2. 5622185 - Barrier device

3. 5524294 - Tamper- or damage-indicating members

4. 5454823 - Suturing apparatus

5. 5224221 - Tamper or damage indicating members

6. 5193555 - Barrier device

7. 5146930 - Contraceptive and anti-infective barrier device

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12/15/2025
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