Growing community of inventors

Lombard, IL, United States of America

Deborah Marie Lonneman

Average Co-Inventor Count = 1.75

ph-index = 7

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 = 97

Deborah Marie LonnemanJohn Michael Douglass (6 patents)Deborah Marie LonnemanDeborah Marie Lonneman (7 patents)John Michael DouglassJohn Michael Douglass (19 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Elkay Manufacturing Company (6 from 162 patents)

2. Usg Interiors, Inc. (1 from 278 patents)


7 patents:

1. D537149 - Sink

2. D530797 - Sink

3. D530403 - Sink

4. D530404 - Sink

5. D529999 - Sink

6. D530001 - Sink

7. D512787 - Curved ceiling panel

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as of
1/8/2026
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