Growing community of inventors

Thomasville, PA, United States of America

Dennis Lee Shaffer

Average Co-Inventor Count = 2.62

ph-index = 3

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 = 38

Dennis Lee Shaffer ↔ Russell Mark Thompson (3 patents)Dennis Lee Shaffer ↔ Eric John Smyder (1 patent)Dennis Lee Shaffer ↔ Brenda Jane Roberts (1 patent)Dennis Lee Shaffer ↔ Daniel J Petroskie (1 patent)Dennis Lee Shaffer ↔ Stephen Michael Kachmar (1 patent)Dennis Lee Shaffer ↔ Ryan Perry Eisensmith (1 patent)Dennis Lee ShafferDennis Lee Shaffer (3 patents)Russell Mark ThompsonRussell Mark Thompson (4 patents)Eric John SmyderEric John Smyder (4 patents)Brenda Jane RobertsBrenda Jane Roberts (1 patent)Daniel J PetroskieDaniel J Petroskie (1 patent)Stephen Michael KachmarStephen Michael Kachmar (1 patent)Ryan Perry EisensmithRyan Perry Eisensmith (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. York International Corporation (3 from 179 patents)


3 patents:

1. 7421854 - Automatic start/stop sequencing controls for a steam turbine powered chiller unit

2. 7421853 - Enhanced manual start/stop sequencing controls for a stream turbine powered chiller unit

3. 7328587 - Integrated adaptive capacity control for a steam turbine powered chiller unit

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as of
12/20/2025
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