Growing community of inventors

Martinsburg, PA, United States of America

Charles E Covatch

Average Co-Inventor Count = 1.00

ph-index = 11

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 = 504

Charles E CovatchCharles E Covatch (18 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Columbia Insurance Company (16 from 1,005 patents)

2. H.h. Brown Shoe Company, Inc. (2 from 24 patents)


18 patents:

1. RE43214 - Metatarsal protector

2. 7836609 - Method and apparatus for a shoe with improved construction

3. RE40757 - Metatarsal protector

4. 7475500 - Shoe with improved construction

5. D575488 - Heel for a shoe

6. D564741 - Outsole for a shoe

7. D564192 - Outsole for a shoe

8. D548444 - Element of a boot

9. 7178271 - Sole with improved construction

10. 7017286 - Steel toe shoe construction

11. 6948263 - Shoe having a multilayered insole

12. D504759 - Outsole for a shoe

13. 6618962 - Metatarsal protector

14. 6604303 - Steel toe shoe construction

15. D462159 - Shoe sole design

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as of
12/12/2025
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