Growing community of inventors

St. Charles, MO, United States of America

Fred Kirchner

Average Co-Inventor Count = 2.00

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 = 113

Fred KirchnerSadiq Shah (3 patents)Fred KirchnerDavid W Osborne (2 patents)Fred KirchnerFred Kirchner (5 patents)Sadiq ShahSadiq Shah (3 patents)David W OsborneDavid W Osborne (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Calgon Vestal, Inc. (4 from 4 patents)

2. E. R. Squibb Sons, Inc. (1 from 1,624 patents)


5 patents:

1. 5906808 - Process of preparing a topical antimicrobial cleanser

2. 5858118 - Stainless steel alkali treatment

3. 5776430 - Topical antimicrobial cleanser containing chlorhexidine gluconate and

4. 5766684 - Stainless steel acid treatment

5. 5445761 - Percarbonate based cleaner for cosmetic and pharmaceutical manufacturing

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idiyas.com
as of
1/12/2026
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