Richard Woldenberg — 6 Patents at Learning Resources

Richard Woldenberg has been granted 6 US patents while listed as an inventor at Learning Resources. The first was granted in 1997 and the most recent in March 2006. Richard Woldenberg ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Richard Woldenberg in Highland Park, IL, US.

Patents per Year

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Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date
7018210	Method and apparatus for teaching and learning reading	Dennis Goldman, Mary Watanabe	2006-03-28
6086105	Book for packaging activity pieces in an activity kit	Lisa Hoffman	2000-07-11
5851118	Digital and analog teaching clock	Yuen Po Man	1998-12-22
D379315	Educational balance	Eric Toriumi, Lonnie C. Pogue, Brian Macowski	1997-05-20
D377949	Digital/analog teaching clock	Jane Woldenberg, Tirza Ernst, Barbara Plain	1997-02-11
5597308	Assembly including interlocking components for teaching mathematical concepts	Lisa Hoffman	1997-01-28

Richard Woldenberg — 6 Patents

Patents per Year

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