Growing community of inventors

Parma, OH, United States of America

Donald E Watkins

Average Co-Inventor Count = 1.95

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 = 107

Donald E WatkinsMarshall B Johnson (2 patents)Donald E WatkinsFrank P Aadahl (2 patents)Donald E WatkinsJohn D Vogel (1 patent)Donald E WatkinsHugh F Groth (1 patent)Donald E WatkinsGuilbert M Hunt (1 patent)Donald E WatkinsFrank H Cooper (1 patent)Donald E WatkinsRobert A Williams (1 patent)Donald E WatkinsDonald E Watkins (7 patents)Marshall B JohnsonMarshall B Johnson (15 patents)Frank P AadahlFrank P Aadahl (5 patents)John D VogelJohn D Vogel (11 patents)Hugh F GrothHugh F Groth (10 patents)Guilbert M HuntGuilbert M Hunt (9 patents)Frank H CooperFrank H Cooper (6 patents)Robert A WilliamsRobert A Williams (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Regina Company (2 from 20 patents)

2. Wear-ever Aluminum, Inc. (2 from 16 patents)

3. Other (1 from 832,891 patents)

4. Aluminum Company of America (1 from 1,321 patents)

5. The Wooster Brush Company (1 from 106 patents)


7 patents:

1. 4993339 - Uphauler for boardsailing

2. D288016 - Carpet cleaner

3. D287894 - Carpet cleaner

4. D271613 - Paint sprayer

5. D256467 - Corn popping apparatus

6. D247414 - Dispensing apparatus for comestibles or similar article

7. 3984033 - Electric gun for dispensing of comestibles

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as of
1/1/2026
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