Growing community of inventors

Minneapolis, MN, United States of America

Joan K Barkhaus

Average Co-Inventor Count = 3.64

ph-index = 4

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 = 203

Joan K Barkhaus ↔ Matthew T Scholz (3 patents)Joan K Barkhaus ↔ Robert A Scherrer (3 patents)Joan K Barkhaus ↔ Yen-Lane Chen (3 patents)Joan K Barkhaus ↔ Nelda M Marecki (3 patents)Joan K Barkhaus ↔ Roy L McQuinn (1 patent)Joan K BarkhausJoan K Barkhaus (4 patents)Matthew T ScholzMatthew T Scholz (184 patents)Robert A ScherrerRobert A Scherrer (46 patents)Yen-Lane ChenYen-Lane Chen (18 patents)Nelda M MareckiNelda M Marecki (3 patents)Roy L McQuinnRoy L McQuinn (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Riker Laboratories Inc. (2 from 193 patents)

2. 3m Innovative Properties Company (1 from 14,059 patents)

3. Minnesota Mining and Manufacturing Company (1 from 7,865 patents)


4 patents:

1. 8173113 - Bioadhesive composition and patch

2. 5780045 - Transmucosal drug delivery device

3. 5750134 - Bioadhesive composition and patch

4. 5750136 - Bioadhesive composition and patch

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idiyas.com
as of
12/6/2025
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