Growing community of inventors

Baltimore, MD, United States of America

Ruth M Keffer

Average Co-Inventor Count = 5.83

ph-index = 1

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 = 7

Ruth M KefferWeston J Van Wambeke (2 patents)Ruth M KefferBrent Austin Kuehne (2 patents)Ruth M KefferLouis August Gibbons (2 patents)Ruth M KefferMichael F Cannaliato (2 patents)Ruth M KefferTerry L Turner (1 patent)Ruth M KefferJohn S Vantran (1 patent)Ruth M KefferRuth M Keffer (2 patents)Weston J Van WambekeWeston J Van Wambeke (59 patents)Brent Austin KuehneBrent Austin Kuehne (52 patents)Louis August GibbonsLouis August Gibbons (20 patents)Michael F CannaliatoMichael F Cannaliato (19 patents)Terry L TurnerTerry L Turner (26 patents)John S VantranJohn S Vantran (16 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Black Decker Inc. (2 from 5,072 patents)


2 patents:

1. 9981327 - Cutting angle indicator in jigsaw housing with dust extraction

2. 9827623 - Control of reciprocation speed and orbital magnitude of a jigsaw with a plurality of material and/or task descriptive icons

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as of
12/6/2025
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