% Expired Patents = 25.0

Forward Citations = 101

Loading Chart...

4 inventors (with patents filed for the assignee):

Robert I Lehrer (4 out of 33 patents)

Diane Frederick (1 out of 1 patent)

Claus Mettenheimer (1 out of 1 patent)

4. Robert G Sandberg (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 7188839 - Entertainment game (2007-03-13),

2. 6165519 - Filter for adsorption from and/or dispersion of ingredients into a fluid (2000-12-26),

3. 5567461 - Method of treating fluids with a filter (1996-10-22),

4. 5304305 - Filter for fluids (1994-04-19),

Robert Lehrer Associates, Inc. is a leading consulting firm specializing in management and strategic planning services for businesses. With a team of experienced professionals, we help our clients achieve their goals and navigate challenges. Visit our website for more information.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#3 in Boothwyn, PA

#2,213 in Pennsylvania

#60,597 in US

Boothwyn, PA, United States of America

Robert Lehrer Associates, Inc.

Forward Citations = 101

4 inventors:

Robert I Lehrer (4 out of 33 patents)

Diane Frederick (1 out of 1 patent)

Claus Mettenheimer (1 out of 1 patent)

4. Robert G Sandberg (1 out of 1 patent)

Please report any incorrect information to [email protected]