Growing community of inventors

Lamar, MO, United States of America

Randall Lee Day

Average Co-Inventor Count = 2.67

ph-index = 2

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 = 23

Randall Lee DayDaniel Ray Whyman (8 patents)Randall Lee DayJohn Richard Nottingham (3 patents)Randall Lee DayJohn Wilford Spirk (3 patents)Randall Lee DayPatrick William Brown (3 patents)Randall Lee DayRobert Soreo (3 patents)Randall Lee DayRandall Lee Day (8 patents)Daniel Ray WhymanDaniel Ray Whyman (10 patents)John Richard NottinghamJohn Richard Nottingham (246 patents)John Wilford SpirkJohn Wilford Spirk (111 patents)Patrick William BrownPatrick William Brown (69 patents)Robert SoreoRobert Soreo (49 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Leisure Time Products, LLC (4 from 15 patents)

2. Backyard Leisure Holdings, Inc. (4 from 15 patents)


8 patents:

1. 12160072 - Power delivery assembly and components thereof

2. 12015227 - Power delivery assembly and components thereof

3. 11791596 - Power delivery assembly and components thereof

4. 11710934 - Power delivery assembly and components thereof

5. 8657697 - Play system accessory with motion-activated sound module

6. 8597132 - Play system accessory with sound modules

7. 8591348 - Stand-on playset swing

8. 8240097 - Wood post anchoring base

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as of
1/22/2026
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