For the Inventor, By the Inventor

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Livonia, MI, United States of America

Holcroft/loftus Inc.

USPTO Granted Patents = 2

Forward Citations = 21

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4 inventors (with patents filed for the assignee):

Gary D Keil (1 out of 14 patents)

John W Smith (1 out of 1 patent)

Ronald E Opfer, Jr (1 out of 1 patent)

4. Madhu Bhatnagar (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4869730 - Endothermic gas generator (1989-09-26),

2. 4763880 - Rotary hearth multi-chamber, multi-purpose furnace system (1988-08-16),

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#62 in Livonia, MI

#3,130 in Michigan

#92,775 in US

Livonia, MI, United States of America

Holcroft/loftus Inc.

Forward Citations = 21

4 inventors:

Gary D Keil (1 out of 14 patents)

John W Smith (1 out of 1 patent)

Ronald E Opfer, Jr (1 out of 1 patent)

4. Madhu Bhatnagar (1 out of 1 patent)

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