Growing community of inventors

Rose Creek, MN, United States of America

Joseph P Landherr

Average Co-Inventor Count = 2.59

ph-index = 7

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 = 269

Joseph P LandherrDouglas G Johnson (3 patents)Joseph P LandherrTimothy T Frenzen (3 patents)Joseph P LandherrLeonard P Bauman (2 patents)Joseph P LandherrRobbin J Delaske (2 patents)Joseph P LandherrPeter E Braun (2 patents)Joseph P LandherrEric P Heim (2 patents)Joseph P LandherrStephen O Myers (2 patents)Joseph P LandherrCynthia L Sheldon (1 patent)Joseph P LandherrJoseph P Landherr (8 patents)Douglas G JohnsonDouglas G Johnson (8 patents)Timothy T FrenzenTimothy T Frenzen (5 patents)Leonard P BaumanLeonard P Bauman (8 patents)Robbin J DelaskeRobbin J Delaske (4 patents)Peter E BraunPeter E Braun (4 patents)Eric P HeimEric P Heim (3 patents)Stephen O MyersStephen O Myers (2 patents)Cynthia L SheldonCynthia L Sheldon (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Truth Hardware Corporation (7 from 146 patents)

2. Other (1 from 832,718 patents)


8 patents:

1. 6341770 - Cutting board combination

2. 5992907 - Lock and tilt latch for sliding windows

3. 5901499 - Double-hung window locking system

4. 5778602 - Pick resistant window lock manual control

5. 5741031 - Concealed window lock with detachable handle and escutcheon

6. D390445 - Window lock handle and escutcheon

7. D389396 - Window lock handle and escutcheon

8. D388689 - Window lock handle and escutcheon

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idiyas.com
as of
12/11/2025
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