Growing community of inventors

Richfield, MN, United States of America

Donald J Manderfeld

Average Co-Inventor Count = 2.00

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 = 2

Donald J ManderfeldRobert A Sells (1 patent)Donald J ManderfeldDonald J Manderfeld (1 patent)Robert A SellsRobert A Sells (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Datacard Corporation (1 from 141 patents)


1 patent:

1. 5009411 - Input hopper apparatus

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/9/2025
Loading…