Growing community of inventors

Arvada, CO, United States of America

Donald E Ingermann

Average Co-Inventor Count = 3.49

ph-index = 8

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 = 202

Donald E IngermannRonald L Smith (9 patents)Donald E IngermannStephen F Caffrey (7 patents)Donald E IngermannLonney J Steinhoff (5 patents)Donald E IngermannJimmie L Knoll (2 patents)Donald E IngermannJoseph C Dechant (2 patents)Donald E IngermannEndre Barsi (2 patents)Donald E IngermannRonald G Sullivan (1 patent)Donald E IngermannEldon G Sauer (1 patent)Donald E IngermannAlan R DeVoe (1 patent)Donald E IngermannDonald E Ingermann (10 patents)Ronald L SmithRonald L Smith (16 patents)Stephen F CaffreyStephen F Caffrey (12 patents)Lonney J SteinhoffLonney J Steinhoff (5 patents)Jimmie L KnollJimmie L Knoll (2 patents)Joseph C DechantJoseph C Dechant (2 patents)Endre BarsiEndre Barsi (2 patents)Ronald G SullivanRonald G Sullivan (1 patent)Eldon G SauerEldon G Sauer (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 (9 from 11 patents)

2. Amf Bowling, Inc. (1 from 33 patents)


10 patents:

1. 5161277 - Variable speed transfer roller for bowling lane dressing apparatus

2. 5063633 - Fluid handling apparatus for bowling lane cleaning device

3. 4962565 - Automatic vacuum bowling lane stripper

4. 4959884 - Combination bowling lane stripper and dressing apparatus

5. 4920604 - Automatic vacuum bowling lane stripper

6. 4856138 - Bowling lane vacuum with floating head

7. 4757831 - Golf club cleaning machine

8. D281362 - Bowling lane duster

9. 4510642 - Combination bowling lane stripper and duster

10. 4246674 - Automatic bowling lane stripper

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idiyas.com
as of
12/15/2025
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