Inventor · disambiguated record
Karl Chang
Also filed as: CHANG KARL · CHANG KARL K
6 granted patents·227 citations·filing 1976–2014
85Inventor score
Top patents by PatentIndex Score
6 records- 0194US9296555B2Composite sheet and cargo container comprising sameDU PONT·Filed 2013·Granted Mar 29, 2016·21 cites·11 claims
- 0291US4788420ASystem and method for reading data record stripes on data cardsVERIFONE INC·Filed 1987·Granted Nov 29, 1988·155 cites·13 claims
- 0390US9302845B2Composite sheet and cargo container comprising sameDU PONT·Filed 2014·Granted Apr 5, 2016·9 cites·13 claims
- 0464US5019696ASystem and method for reading data record stripes on data cardsVERIFONE INC·Filed 1988·Granted May 28, 1991·28 cites·7 claims
- 0536US5173238AMethod for injection molding a transaction terminal caseVERIFONE INC·Filed 1991·Granted Dec 22, 1992·8 cites·10 claims
- 0624US4133124ADisplay deviceCHANG KARL·Filed 1976·Granted Jan 9, 1979·6 cites·3 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →