Growing community of inventors

Merrillville, IN, United States of America

Harold Thomas Ruggles

Average Co-Inventor Count = 3.23

ph-index = 4

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 = 37

Harold Thomas RugglesMartin Conneally (5 patents)Harold Thomas RugglesDaniel P Otto (5 patents)Harold Thomas RugglesStefan T Pendrick (2 patents)Harold Thomas RugglesRobert N Madderom (2 patents)Harold Thomas RugglesBrandon R Huynh (2 patents)Harold Thomas RugglesHarold Thomas Ruggles (7 patents)Martin ConneallyMartin Conneally (5 patents)Daniel P OttoDaniel P Otto (5 patents)Stefan T PendrickStefan T Pendrick (4 patents)Robert N MadderomRobert N Madderom (2 patents)Brandon R HuynhBrandon R Huynh (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Holland LP (4 from 47 patents)

2. Other (2 from 832,718 patents)

3. Holland Company LP (1 from 46 patents)


7 patents:

1. 9303364 - Rail cant measurement tool and method

2. 8844149 - Rail cant measurement tool and method

3. 7451632 - Gauge restraint load calibration system

4. 7337682 - Gauge restraint measuring system

5. 7311010 - Gauge restraint measurement system

6. 7270018 - Gauge restraint measuring system

7. 7007561 - Gauge restraint measurement system

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as of
12/11/2025
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