Growing community of inventors

Worcester, MA, United States of America

Richard A McGrail

Average Co-Inventor Count = 2.40

ph-index = 2

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 = 11

Richard A McGrailGeorge M Woodley (3 patents)Richard A McGrailWilliam W Ross (3 patents)Richard A McGrailStephen J Powers (3 patents)Richard A McGrailFrank Osowski (1 patent)Richard A McGrailTom Drechsler (1 patent)Richard A McGrailRichard A McGrail (5 patents)George M WoodleyGeorge M Woodley (15 patents)William W RossWilliam W Ross (3 patents)Stephen J PowersStephen J Powers (3 patents)Frank OsowskiFrank Osowski (1 patent)Tom DrechslerTom Drechsler (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. King Instrument Corporation (3 from 36 patents)

2. Raytheon Company (1 from 8,191 patents)

3. Quantum Corporation (1 from 840 patents)


5 patents:

1. 8689942 - Energy storage and release system

2. 6375108 - Multi-layered drive leader for a tape drive

3. 5176332 - Tape loading machine

4. 4974785 - Splicing head assembly for tape loading machines

5. 4858841 - Apparatus for loading tape into a cassette

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as of
1/3/2026
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