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Beaverton, OR, United States of America

Robert D Jansen

Average Co-Inventor Count = 1.00

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 = 0

Robert D JansenRobert D Jansen (12 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Terra Nova Nurseries, Inc. (11 from 552 patents)

2. Terra Nova (1 from 2 patents)


12 patents:

1. PP26699 - plant named 'Cha Cha Hot Pink'

2. PP26700 - plant named 'Cha Cha Lavender'

3. PP26698 - plant named 'Cha Cha Purple'

4. PP26673 - plant named 'Cha Cha Pink'

5. PP25361 - plant named 'Boysenberry Taffy'

6. PP24293 - plant named 'Watermelon Taffy'

7. PP22568 - plant named 'Blueberry Taffy'

8. PP22567 - plant named 'Grape Taffy'

9. PP22569 - plant named 'Strawberry Taffy'

10. PP20007 - Tricyrtis plant named 'White Waves'

11. PP18956 - Tricyrtis plant named 'Imperial Banner'

12. PP16064 - Silene dioica plant named 'Valley High'

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as of
12/19/2025
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