Growing community of inventors

Ann Arbor, MI, United States of America

Douglas Robert Hennigar

Average Co-Inventor Count = 4.00

ph-index = 5

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 = 198

Douglas Robert HennigarMatthew Paul Weber (6 patents)Douglas Robert HennigarNeil M Cole (4 patents)Douglas Robert HennigarRoger Adrian Fettes (4 patents)Douglas Robert HennigarMark D Hildebrandt (3 patents)Douglas Robert HennigarWalter N Cole (3 patents)Douglas Robert HennigarDaniel C Shnidman (3 patents)Douglas Robert HennigarRobert A Law (3 patents)Douglas Robert HennigarStephen Telesco (1 patent)Douglas Robert HennigarKarl Sponsler (1 patent)Douglas Robert HennigarRichard N Sarns (1 patent)Douglas Robert HennigarSteven W Sarns (1 patent)Douglas Robert HennigarCarol J Wilson (1 patent)Douglas Robert HennigarBrian Kurowicki (1 patent)Douglas Robert HennigarRobert E Twining (1 patent)Douglas Robert HennigarDouglas Robert Hennigar (9 patents)Matthew Paul WeberMatthew Paul Weber (8 patents)Neil M ColeNeil M Cole (7 patents)Roger Adrian FettesRoger Adrian Fettes (4 patents)Mark D HildebrandtMark D Hildebrandt (12 patents)Walter N ColeWalter N Cole (5 patents)Daniel C ShnidmanDaniel C Shnidman (4 patents)Robert A LawRobert A Law (3 patents)Stephen TelescoStephen Telesco (14 patents)Karl SponslerKarl Sponsler (6 patents)Richard N SarnsRichard N Sarns (4 patents)Steven W SarnsSteven W Sarns (2 patents)Carol J WilsonCarol J Wilson (1 patent)Brian KurowickiBrian Kurowicki (1 patent)Robert E TwiningRobert E Twining (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nustep, Inc. (8 from 16 patents)

2. Beep-it Corporation (1 from 1 patent)


9 patents:

1. 11097151 - Locking device for recumbent stepper

2. 10258823 - Instrumented total body recumbent cross trainer system

3. 10150000 - Locking device for recumbent stepper

4. 9757612 - Locking device for recumbent stepper

5. 9004598 - Seating system for a recumbent stepper

6. 7775942 - Recumbent stepper apparatus

7. 7540830 - Leg stabilization device

8. 7490363 - Hand harness for exercise equipment

9. 5764131 - Multi-function beeper and housing

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idiyas.com
as of
12/9/2025
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