Growing community of inventors

Baltimore, MD, United States of America

Leonard J Litkowski

Average Co-Inventor Count = 3.00

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 = 219

Leonard J LitkowskiDavid C Greenspan (8 patents)Leonard J LitkowskiGary David Hack (5 patents)Leonard J LitkowskiPaul D Thut (3 patents)Leonard J LitkowskiLeonard J Litkowski (8 patents)David C GreenspanDavid C Greenspan (27 patents)Gary David HackGary David Hack (9 patents)Paul D ThutPaul D Thut (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (4 from 832,966 patents)

2. University System of Maryland (3 from 1,944 patents)

3. Usbiomaterials Corporation (3 from 17 patents)


8 patents:

1. 6365132 - Methods and compositions for whitening teeth

2. 6338751 - Compositions containing bioactive glass and their use in treating tooth hypersensitivity

3. 6244871 - Bioactive glass compositions and methods of treatment using bioactive glass

4. 6197342 - Use of biologically active glass as a drug delivery system

5. 6153221 - Use of biogically active glass as a drug delivery system

6. 6086374 - Methods of treatment using bioactive glass

7. 5972384 - Use of biologically active glass as a drug delivery system

8. 5735942 - Compositions containing bioactive glass and their use in treating tooth

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as of
1/19/2026
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