Growing community of inventors

Salt Lake City, UT, United States of America

Roger T Johnsen

Average Co-Inventor Count = 3.28

ph-index = 15

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 = 819

Roger T JohnsenRobin M Urry (14 patents)Roger T JohnsenRichard C Hedderich (9 patents)Roger T JohnsenMichael S Horito (6 patents)Roger T JohnsenRussell E Scott (6 patents)Roger T JohnsenJonathan Jay Woolley (6 patents)Roger T JohnsenGerardo David Ayala (6 patents)Roger T JohnsenJay J Davis (4 patents)Roger T JohnsenPaul B Vincent (4 patents)Roger T JohnsenPaul E Nagel (3 patents)Roger T JohnsenRichard C Watson (2 patents)Roger T JohnsenBrent Delbert Madsen (2 patents)Roger T JohnsenJohn Paul Devlin (2 patents)Roger T JohnsenDavid Orrin Swett (2 patents)Roger T JohnsenJan Schminke (2 patents)Roger T JohnsenJason J Cooper (2 patents)Roger T JohnsenWilliam B West (2 patents)Roger T JohnsenChristopher M Belcher (2 patents)Roger T JohnsenJames K Russell (2 patents)Roger T JohnsenJohn B Bogdan (2 patents)Roger T JohnsenMark J Morgan (2 patents)Roger T JohnsenRichard Allen Kreifeldt (1 patent)Roger T JohnsenAndrew Mark Urry (1 patent)Roger T JohnsenJames D Pennock (1 patent)Roger T JohnsenWallace Eric Smith (1 patent)Roger T JohnsenCraig B DeVries (1 patent)Roger T JohnsenJames R Gist (1 patent)Roger T JohnsenThomas W Peterson (1 patent)Roger T JohnsenMichael E Dallon (1 patent)Roger T JohnsenMatthew T Bush (1 patent)Roger T JohnsenRobin Scott Urry (1 patent)Roger T JohnsenSteven C Hart (1 patent)Roger T JohnsenRoger T Johnsen (32 patents)Robin M UrryRobin M Urry (29 patents)Richard C HedderichRichard C Hedderich (10 patents)Michael S HoritoMichael S Horito (13 patents)Russell E ScottRussell E Scott (9 patents)Jonathan Jay WoolleyJonathan Jay Woolley (8 patents)Gerardo David AyalaGerardo David Ayala (7 patents)Jay J DavisJay J Davis (7 patents)Paul B VincentPaul B Vincent (5 patents)Paul E NagelPaul E Nagel (18 patents)Richard C WatsonRichard C Watson (65 patents)Brent Delbert MadsenBrent Delbert Madsen (53 patents)John Paul DevlinJohn Paul Devlin (27 patents)David Orrin SwettDavid Orrin Swett (25 patents)Jan SchminkeJan Schminke (24 patents)Jason J CooperJason J Cooper (19 patents)William B WestWilliam B West (10 patents)Christopher M BelcherChristopher M Belcher (10 patents)James K RussellJames K Russell (10 patents)John B BogdanJohn B Bogdan (7 patents)Mark J MorganMark J Morgan (2 patents)Richard Allen KreifeldtRichard Allen Kreifeldt (36 patents)Andrew Mark UrryAndrew Mark Urry (36 patents)James D PennockJames D Pennock (16 patents)Wallace Eric SmithWallace Eric Smith (11 patents)Craig B DeVriesCraig B DeVries (9 patents)James R GistJames R Gist (4 patents)Thomas W PetersonThomas W Peterson (3 patents)Michael E DallonMichael E Dallon (1 patent)Matthew T BushMatthew T Bush (1 patent)Robin Scott UrryRobin Scott Urry (1 patent)Steven C HartSteven C Hart (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Control4 Corporation (16 from 66 patents)

2. Zyntony, Inc. (7 from 11 patents)

3. Harman International Industries, Inc. (4 from 1,941 patents)

4. Other (2 from 832,880 patents)

5. Harman Music Group (2 from 4 patents)

6. Control14 Corporation (1 from 1 patent)


32 patents:

1. 11082003 - Short-string parallel-DC optimizer for photovoltaic systems

2. 10770903 - Distributed energy system with four conductor bipolar DC bus

3. D884945 - Multi-section portable electronic torch

4. 10251230 - Multi-section portable electronic torch

5. 10044190 - Distributed energy system with four conductor bipolar DC bus

6. 10027277 - Short-string parallel-DC optimizer for photovoltaic systems

7. D811635 - Multi-section portable electronic torch

8. 9713216 - Multi-section portable electronic torch

9. D682346 - Musical instrument pedal

10. 7983026 - Touch panel cradle

11. D613270 - Audio input/output device

12. D611036 - Audio input/output device

13. D584700 - Portable electronics enclosure

14. 7335845 - Air-gap switch

15. D552616 - Table-top box for touchscreen and LCD keypad

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1/5/2026
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