Growing community of inventors

Brentwood, TN, United States of America

Donald J Polak

Average Co-Inventor Count = 2.12

ph-index = 3

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 = 127

Donald J PolakKenneth E McDonald (3 patents)Donald J PolakThomas J Bush (2 patents)Donald J PolakRobert E Ponter (1 patent)Donald J PolakJohn D Gauld (1 patent)Donald J PolakDonald J Polak (6 patents)Kenneth E McDonaldKenneth E McDonald (4 patents)Thomas J BushThomas J Bush (10 patents)Robert E PonterRobert E Ponter (3 patents)John D GauldJohn D Gauld (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pelikan, Inc. (4 from 23 patents)

2. Identity Group, Inc. (1 from 8 patents)


6 patents:

1. 5740737 - Handstamping apparatus

2. 5339122 - Overhead projector with automatic document positioner

3. 5326008 - Breaker tool for adjusting the size of hanging file frames to fit into a

4. D344102 - Sheet of decals

5. 5237732 - Method for adjusting the size of hanging file frames to fit into a

6. D337926 - Breaker tool for hanging file frame rails

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as of
1/10/2026
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