Growing community of inventors

Belleville, IL, United States of America

Donald P Rigney

Average Co-Inventor Count = 1.43

ph-index = 5

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 = 218

Donald P RigneyLloyd R Maschhoff (2 patents)Donald P RigneyDavid M Christensen (1 patent)Donald P RigneyDonald P Rigney (5 patents)Lloyd R MaschhoffLloyd R Maschhoff (5 patents)David M ChristensenDavid M Christensen (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Empire Comfort Systems, Inc. (5 from 13 patents)


5 patents:

1. 6481343 - Barbecue grill grate

2. 6446545 - Food cooking apparatus with drain spigot

3. 6269737 - Food cooking apparatus

4. 6083392 - Ribbed funnel

5. 5974954 - Barbecue grill grate

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as of
12/20/2025
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