Growing community of inventors

Metolius, OR, United States of America

James Prentice Drago

Average Co-Inventor Count = 1.94

ph-index = 4

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 = 32

James Prentice DragoDaniel W Jackson (2 patents)James Prentice DragoMichael Kloepfer (1 patent)James Prentice DragoScott Delamarter (1 patent)James Prentice DragoKenneth Stout (1 patent)James Prentice DragoMichael Kloepfer (1 patent)James Prentice DragoJohn Thomas (1 patent)James Prentice DragoRobert Moore (1 patent)James Prentice DragoKenneth A Stout (1 patent)James Prentice DragoRobert Moore (1 patent)James Prentice DragoJames Prentice Drago (5 patents)Daniel W JacksonDaniel W Jackson (12 patents)Michael KloepferMichael Kloepfer (26 patents)Scott DelamarterScott Delamarter (6 patents)Kenneth StoutKenneth Stout (5 patents)Michael KloepferMichael Kloepfer (33 patents)John ThomasJohn Thomas (1 patent)Robert MooreRobert Moore (1 patent)Kenneth A StoutKenneth A Stout (1 patent)Robert MooreRobert Moore (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Keith Manufacturing Co. (4 from 24 patents)

2. Keith Mfg. Co. (1 from 1 patent)


5 patents:

1. 9187257 - V-slat reciprocating slat conveyors

2. 8424674 - Slat conveyor with fixed and movable slats

3. 8083052 - V-slat reciprocating slat conveyors

4. 8006828 - Reciprocating slat conveyor with moving slats between fixed slats

5. 7461738 - Reciprocating slat conveyors

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as of
1/12/2026
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