Growing community of inventors

Houston, TX, United States of America

Joseph M Crawford

Average Co-Inventor Count = 2.25

ph-index = 6

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 = 153

Joseph M CrawfordMichael K Crawford (5 patents)Joseph M CrawfordJames R Crawford (5 patents)Joseph M CrawfordJoseph M Crawford (6 patents)Michael K CrawfordMichael K Crawford (26 patents)James R CrawfordJames R Crawford (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Easy Lift Care Products, Inc. (4 from 4 patents)

2. Other (1 from 832,761 patents)

3. Easy Lift Products, Inc. (1 from 1 patent)


6 patents:

1. 5666677 - Bath tub assembly

2. 5598590 - Bathing apparatus

3. 5584082 - Convertible gurney

4. 5579543 - Method for transferring a patient between a bed and a bath tub

5. 5402544 - Combination chair and gurney

6. 4970740 - Bi-motional cradle

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as of
12/16/2025
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