Growing community of inventors

Cambridge, United Kingdom

Helen Elizabeth Johnson

Average Co-Inventor Count = 5.00

ph-index = 1

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 = 10

Helen Elizabeth Johnson ↔ Thomas Hille (1 patent)Helen Elizabeth Johnson ↔ Kevin John Smith (1 patent)Helen Elizabeth Johnson ↔ Gabriel Wauer (1 patent)Helen Elizabeth Johnson ↔ Gillian Elizabeth Mundin (1 patent)Helen Elizabeth Johnson ↔ Thomas Hille (1 patent)Helen Elizabeth Johnson ↔ Kevin John Smith (1 patent)Helen Elizabeth JohnsonHelen Elizabeth Johnson (1 patent)Thomas HilleThomas Hille (55 patents)Kevin John SmithKevin John Smith (11 patents)Gabriel WauerGabriel Wauer (9 patents)Gillian Elizabeth MundinGillian Elizabeth Mundin (1 patent)Thomas HilleThomas Hille (4 patents)Kevin John SmithKevin John Smith (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Purdue Pharma L.p. (1 from 545 patents)

2. Lts Lohmann Therapie-Systeme Ag (320 patents)


1 patent:

1. 9549903 - Transdermal delivery system comprising buprenorphine

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1/8/2026
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