Growing community of inventors

Inwood, MD, United States of America

David A Sprankle

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 = 1,099

David A SprankleCharles H Wood (3 patents)David A SprankleDarrin Leonhardt (2 patents)David A SpranklePaul Mason (2 patents)David A SprankleKevin Lascola (2 patents)David A SprankleGeorge Jarrard (2 patents)David A SpranklePaul L Mason (2 patents)David A SpranklePradyumna Kumar Swain (1 patent)David A SprankleMichael Peil (1 patent)David A SprankleRuben C Manikkam (1 patent)David A SprankleCurt Harper (1 patent)David A SprankleMatthew Schroeder (1 patent)David A SprankleJohanna Heck (1 patent)David A SprankleJörg Diettrich (1 patent)David A SprankleRuben Manikkam (0 patent)David A SprankleDavid A Sprankle (9 patents)Charles H WoodCharles H Wood (44 patents)Darrin LeonhardtDarrin Leonhardt (17 patents)Paul MasonPaul Mason (7 patents)Kevin LascolaKevin Lascola (5 patents)George JarrardGeorge Jarrard (3 patents)Paul L MasonPaul L Mason (3 patents)Pradyumna Kumar SwainPradyumna Kumar Swain (27 patents)Michael PeilMichael Peil (13 patents)Ruben C ManikkamRuben C Manikkam (2 patents)Curt HarperCurt Harper (1 patent)Matthew SchroederMatthew Schroeder (1 patent)Johanna HeckJohanna Heck (1 patent)Jörg DiettrichJörg Diettrich (1 patent)Ruben ManikkamRuben Manikkam (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Automated Merchandising Systems, Inc. (3 from 17 patents)

2. Fusion Uv Systems, Inc. (2 from 53 patents)

3. Heraeus Noblelight America LLC (2 from 18 patents)

4. Heraeus Noblelight Gmbh (1 from 101 patents)

5. Heraeus Noblelight Fusion Uv Inc. (1 from 7 patents)

6. Automated Mechandising Systems, Inc. (1 from 1 patent)


9 patents:

1. 10308550 - Device including a radiation emitter for applying radiation to a target, and related methods

2. 9664371 - Lamp head assemblies and methods of assembling the same

3. 8507884 - Elliptical light source for ultraviolet (UV) curing lamp assemblies

4. 8003931 - Optical vend-sensing system for control of vending machine

5. 7988015 - Adjustable storage rack for a vending machine

6. 7977659 - Radio frequency screen assembly for microwave cavities

7. 7906911 - Luminaire assembly having a bonded reflector cavity for supporting an ultra-violet lamp

8. 7446302 - Optical vend-sensing system for control of vending machine

9. 7246719 - Adjustable storage rack for a vending machine

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as of
12/6/2025
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