Growing community of inventors

Gate Mills, OH, United States of America

John W Spirk

Average Co-Inventor Count = 4.00

ph-index = 1

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 = 13

John W SpirkJohn R Nottingham (6 patents)John W SpirkNick E Stanca (2 patents)John W SpirkDale Anton Panasewicz (2 patents)John W SpirkSteve Cashman (2 patents)John W SpirkJohn Richard Nottingham (1 patent)John W SpirkJeffrey M Kalman (1 patent)John W SpirkLawrence A Blaustein (1 patent)John W SpirkJason Grant Tilk (1 patent)John W SpirkJeffrey M Kalman (1 patent)John W SpirkDennis M Futo (1 patent)John W SpirkDouglas Alan Gall (1 patent)John W SpirkJohn D Osher (1 patent)John W SpirkJeffrey Kalman (1 patent)John W SpirkGary Robert Stephan (1 patent)John W SpirkRobert F Soreo (1 patent)John W SpirkSteve Tsengas (1 patent)John W SpirkRobert Iredell (1 patent)John W SpirkRobert Iv Iredell (1 patent)John W SpirkJason G Tilk (1 patent)John W SpirkMichael P O'toole (1 patent)John W SpirkJohn W Spirk (1 patent)John R NottinghamJohn R Nottingham (11 patents)Nick E StancaNick E Stanca (3 patents)Dale Anton PanasewiczDale Anton Panasewicz (3 patents)Steve CashmanSteve Cashman (3 patents)John Richard NottinghamJohn Richard Nottingham (246 patents)Jeffrey M KalmanJeffrey M Kalman (2 patents)Lawrence A BlausteinLawrence A Blaustein (82 patents)Jason Grant TilkJason Grant Tilk (6 patents)Jeffrey M KalmanJeffrey M Kalman (3 patents)Dennis M FutoDennis M Futo (2 patents)Douglas Alan GallDouglas Alan Gall (3 patents)John D OsherJohn D Osher (23 patents)Jeffrey KalmanJeffrey Kalman (2 patents)Gary Robert StephanGary Robert Stephan (2 patents)Robert F SoreoRobert F Soreo (1 patent)Steve TsengasSteve Tsengas (1 patent)Robert IredellRobert Iredell (1 patent)Robert Iv IredellRobert Iv Iredell (1 patent)Jason G TilkJason G Tilk (3 patents)Michael P O'tooleMichael P O'toole (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Procter Gamble Company (1 from 17,173 patents)

2. Church Dwight & Co., Inc. (546 patents)

3. The Sherwin Williams Company (493 patents)

4. Ourpet's Company (68 patents)

5. Healthspot Inc. (3 patents)


1 patent:

1. D458030 - Head portion of an electric toothbrush

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as of
1/9/2026
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