Growing community of inventors

Jacksonville, FL, United States of America

Mary Beth Letscher

Average Co-Inventor Count = 1.59

ph-index = 6

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 = 163

Mary Beth LetscherSandra K Richmann (4 patents)Mary Beth LetscherMichael A Schuster (1 patent)Mary Beth LetscherJohn C Harrington, Iv (1 patent)Mary Beth LetscherFrank J Sutman (1 patent)Mary Beth LetscherThomas E Taggart (1 patent)Mary Beth LetscherSandra K Richman (1 patent)Mary Beth LetscherIrenee J Philippe (1 patent)Mary Beth LetscherMary Beth Letscher (9 patents)Sandra K RichmannSandra K Richmann (5 patents)Michael A SchusterMichael A Schuster (9 patents)John C Harrington, IvJohn C Harrington, Iv (6 patents)Frank J SutmanFrank J Sutman (5 patents)Thomas E TaggartThomas E Taggart (3 patents)Sandra K RichmanSandra K Richman (1 patent)Irenee J PhilippeIrenee J Philippe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Betz Paperchem, Inc. (6 from 37 patents)

2. Betz Laboratories, Inc. (2 from 577 patents)

3. Other (1 from 832,761 patents)


9 patents:

1. 5626718 - Use of polymers in the recycled fiber washing/deinking process

2. 5387355 - Use of anionic surfactant/dispersant blends for the deinking of

3. 5302242 - Process and composition for deinking dry toner electrostatic printed

4. 5282997 - Process and composition for deinking dry toner electrostatic printed

5. 5281348 - Use of anionic surfactant/dispersant blends for the deinking of

6. 5248388 - Use of surfactants having an HLB less than 10 in the deinking of dry

7. 5200034 - Use of surfactants having an HLB less than 10 in the deinking of dry

8. 5141598 - Process and composition for deinking dry toner electrostatic printed

9. 5094716 - Use of anionic surfactant/dispersant blends for the deinking of

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as of
12/16/2025
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