Growing community of inventors

Universal City, CA, United States of America

Nicholas H Drobnis

Average Co-Inventor Count = 3.15

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 = 213

Nicholas H DrobnisPhilip D Hettema (2 patents)Nicholas H DrobnisEdward S Newquist (2 patents)Nicholas H DrobnisCecil D Magpuri (1 patent)Nicholas H DrobnisBenjamin L Sheldon (1 patent)Nicholas H DrobnisJames H Hightower (1 patent)Nicholas H DrobnisCraig R Hanna (1 patent)Nicholas H DrobnisJohn Leisner (1 patent)Nicholas H DrobnisChristopher Brown (1 patent)Nicholas H DrobnisHarry C Corbin (1 patent)Nicholas H DrobnisDavid MacMurtry (1 patent)Nicholas H DrobnisScott H Smith (1 patent)Nicholas H DrobnisBarry Upson (1 patent)Nicholas H DrobnisJim Crossley (1 patent)Nicholas H DrobnisRobert A MacDonald (1 patent)Nicholas H DrobnisRandall G Novak (1 patent)Nicholas H DrobnisHarry E Largman (1 patent)Nicholas H DrobnisNorman J Kahn (1 patent)Nicholas H DrobnisThomas A Garcia, Jr (1 patent)Nicholas H DrobnisJames M Lehner (1 patent)Nicholas H DrobnisJohn R Murdy (1 patent)Nicholas H DrobnisFred Gallo, Jr (1 patent)Nicholas H DrobnisFrank Masi (1 patent)Nicholas H DrobnisCraig Hanna (1 patent)Nicholas H DrobnisTed W Van Winkle (1 patent)Nicholas H DrobnisNicholas H Drobnis (6 patents)Philip D HettemaPhilip D Hettema (6 patents)Edward S NewquistEdward S Newquist (3 patents)Cecil D MagpuriCecil D Magpuri (6 patents)Benjamin L SheldonBenjamin L Sheldon (4 patents)James H HightowerJames H Hightower (3 patents)Craig R HannaCraig R Hanna (2 patents)John LeisnerJohn Leisner (2 patents)Christopher BrownChristopher Brown (1 patent)Harry C CorbinHarry C Corbin (1 patent)David MacMurtryDavid MacMurtry (1 patent)Scott H SmithScott H Smith (1 patent)Barry UpsonBarry Upson (1 patent)Jim CrossleyJim Crossley (1 patent)Robert A MacDonaldRobert A MacDonald (1 patent)Randall G NovakRandall G Novak (1 patent)Harry E LargmanHarry E Largman (1 patent)Norman J KahnNorman J Kahn (1 patent)Thomas A Garcia, JrThomas A Garcia, Jr (1 patent)James M LehnerJames M Lehner (1 patent)John R MurdyJohn R Murdy (1 patent)Fred Gallo, JrFred Gallo, Jr (1 patent)Frank MasiFrank Masi (1 patent)Craig HannaCraig Hanna (1 patent)Ted W Van WinkleTed W Van Winkle (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Universal City Studios, Inc. (3 from 505 patents)

2. Universal Studios LLC (3 from 20 patents)


6 patents:

1. 6533670 - Amusement ride with pivotable motion base

2. 6254489 - Amusement attraction with man-made tornado

3. 6060847 - Interactive amusement ride

4. 5868628 - Live-action theater

5. 5833544 - Film and live action theater

6. 5704294 - Waterfall ride attraction

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as of
12/18/2025
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