Inventor
COWART WALTER C
US18 patents
Patents
18 patentsUS10865017B1Dec 15, 2020
Mold for making canister lid
DEROYAL IND INC69 citations95
USD856512SAug 13, 2019
Canister lid
DEROYAL IND INC82 citations95
US7806879B2Oct 5, 2010
Medical suction system
DEROYAL IND INC97 citations93
USD1008348SDec 19, 2023
Eye shield
DEROYAL IND INC4 citations74
USD983867SApr 18, 2023
Eye shield
DEROYAL IND INC5 citations73
USD980312SMar 7, 2023
Eye shield
DEROYAL IND INC3 citations72
USD989852SJun 20, 2023
Eye shield
DEROYAL IND INC3 citations71
US11572221B1Feb 7, 2023
Canister lid
DEROYAL IND INC1 citations70
US12360393B2Jul 15, 2025
Eye shield frame with improved fit
DEROYAL IND INC0 citations62
USD1001181SOct 10, 2023
Eye shield frame
DEROYAL IND INC0 citations62
US12304704B2May 20, 2025
Stackable eye shields
DEROYAL IND INC0 citations61
USD1034773SJul 9, 2024
Eye shield
DEROYAL IND INC0 citations61
USD1030850SJun 11, 2024
Eye shield
DEROYAL IND INC0 citations61
USD1095826SSep 30, 2025
Negative pressure wound therapy tubing adapter
DEROYAL IND INC0 citations57
USD1094708SSep 23, 2025
Negative pressure wound therapy tubing connector
DEROYAL IND INC0 citations54
US11914232B2Feb 27, 2024
Eye shields with selectively releasable snap-fit assembly
DEROYAL IND INC0 citations51
US11911317B2Feb 27, 2024
Stackable eye shields with selectively releasable snap-fit assembly
DEROYAL IND INC0 citations50
US12340673B1Jun 24, 2025
Fall monitor system
DEROYAL IND INC0 citations44