Growing community of inventors

Arvada, CO, United States of America

Stephen F Caffrey

Average Co-Inventor Count = 3.65

ph-index = 9

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 = 182

Stephen F CaffreyRonald L Smith (11 patents)Stephen F CaffreyDonald E Ingermann (7 patents)Stephen F CaffreyLonney J Steinhoff (4 patents)Stephen F CaffreyLeonid Feldman (4 patents)Stephen F CaffreyJoseph C Dechant (2 patents)Stephen F CaffreyEndre Barsi (2 patents)Stephen F CaffreyJimmie L Knoll (2 patents)Stephen F CaffreySteven Wayne Stuart (1 patent)Stephen F CaffreyBruce Hitchcock (1 patent)Stephen F CaffreyRonald G Sullivan (1 patent)Stephen F CaffreyAlan R DeVoe (1 patent)Stephen F CaffreyStephen F Caffrey (12 patents)Ronald L SmithRonald L Smith (16 patents)Donald E IngermannDonald E Ingermann (10 patents)Lonney J SteinhoffLonney J Steinhoff (5 patents)Leonid FeldmanLeonid Feldman (4 patents)Joseph C DechantJoseph C Dechant (2 patents)Endre BarsiEndre Barsi (2 patents)Jimmie L KnollJimmie L Knoll (2 patents)Steven Wayne StuartSteven Wayne Stuart (2 patents)Bruce HitchcockBruce Hitchcock (1 patent)Ronald G SullivanRonald G Sullivan (1 patent)Alan R DeVoeAlan R DeVoe (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Century International Corporation (7 from 11 patents)

2. Amf Bowling, Inc. (5 from 33 patents)


12 patents:

1. 5679162 - Apparatus for selectively metering dressing onto a bowling lane surface

2. 5641538 - Apparatus and method for selectively metering dressing onto a bowling

3. 5629049 - Apparatus for selectively metering dressing onto a bowling lane surface

4. 5517709 - Apparatus for selectively metering dressing onto a bowling lane surface

5. 5455977 - Bowling lane dressing apparatus with continuously variable speed drive

6. 5063633 - Fluid handling apparatus for bowling lane cleaning device

7. 4962565 - Automatic vacuum bowling lane stripper

8. 4959884 - Combination bowling lane stripper and dressing apparatus

9. 4920604 - Automatic vacuum bowling lane stripper

10. 4856138 - Bowling lane vacuum with floating head

11. D281362 - Bowling lane duster

12. 4510642 - Combination bowling lane stripper and duster

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as of
1/3/2026
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