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Murrysville, PA, United States of America

Charles H Hoelscher

USPTO Granted Patents = 6

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 232(Granted Patents)

Location History:

Corpus Christi, TX (US) (1978)
Doylestown, OH (US) (1986 - 1990)
Murrysville, PA (US) (1991 - 1994)

Company Filing History:

Ppg Industries, Inc.

Years Active: 1978-1994

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5288877 - Continuous process for preparing indolenine compounds (1994-02-22),

2. 5019659 - Method of separating 2-nitrosophenol isomer from admixture with (1991-05-28),

3. 4931220 - Organic photochromic pigment particulates (1990-06-05),

4. 4634767 - Method for preparing spiro(indoline)-type photochromic compounds (1987-01-06),

5. 4605545 - Method for producing sodium dithionite (1986-08-12),

6. 4094808 - Solubility stable encapsulated diperisophthalic acid compositions (1978-06-13),

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