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Carlsbad, CA, United States of America

Walter Arthur Schreifels

Average Co-Inventor Count = 6.00

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 = 70

Walter Arthur Schreifels ↔ Eric Martin Hahn (4 patents)Walter Arthur Schreifels ↔ Joseph Edward Smith (4 patents)Walter Arthur Schreifels ↔ Alfonso V Alvarez (4 patents)Walter Arthur Schreifels ↔ Woods W Burnett (4 patents)Walter Arthur Schreifels ↔ Patrick Gene Sullivan (4 patents)Walter Arthur SchreifelsWalter Arthur Schreifels (4 patents)Eric Martin HahnEric Martin Hahn (9 patents)Joseph Edward SmithJoseph Edward Smith (5 patents)Alfonso V AlvarezAlfonso V Alvarez (5 patents)Woods W BurnettWoods W Burnett (4 patents)Patrick Gene SullivanPatrick Gene Sullivan (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Boral Lifetile Inc. (3 from 18 patents)

2. Boral Industries, Inc. (1 from 3 patents)


4 patents:

1. D452920 - Roof tile

2. 6247284 - Roof tile design and construction

3. 5974756 - Roof tile design and construction

4. D411316 - Roof tile

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as of
12/19/2025
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