Inventor
CLAPPER JOSHUA E
US36 patents
⚠️ This page may combine multiple inventors who share the name “CLAPPER JOSHUA E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NORTH AMERICAN PIPE CORP
16 patentsUS12203581B2Jan 21, 2025
Polymer pipe, a pipe joint insert device, a pipe joint assembly, and methods of forming same
NORTH AMERICAN PIPE CORP3 citations73
US11035505B2Jun 15, 2021
System, method and apparatus for in-line removable pipe assembly
NORTH AMERICAN PIPE CORP2 citations72
US10443204B2Oct 15, 2019
System, method and apparatus for basement footer concrete forms and drainage-related components
NORTH AMERICAN PIPE CORP6 citations70
US11098832B2Aug 24, 2021
System, method and apparatus for low profile seal
NORTH AMERICAN PIPE CORP5 citations68
US12595869B2Apr 7, 2026
Pipe joint insert device, pipe joint assembly, and methods of forming same
NORTH AMERICAN PIPE CORP0 citations61
US12516764B2Jan 6, 2026
Polymer pipe, a pipe joint insert device, a pipe joint assembly, and methods of forming same
NORTH AMERICAN PIPE CORP0 citations61
US12038108B2Jul 16, 2024
System, method and apparatus for in-line removable pipe assembly
NORTH AMERICAN PIPE CORP0 citations61
US11441714B2Sep 13, 2022
System, method and apparatus for ramped retainer for a pipe
NORTH AMERICAN PIPE CORP0 citations61
US11098834B2Aug 24, 2021
System, method and apparatus for debris shield for squeeze-activated retainer for a conduit
NORTH AMERICAN PIPE CORP1 citations61
US11015753B2May 25, 2021
System, method and apparatus for pull-actuated spline for coupling with a pipe
NORTH AMERICAN PIPE CORP1 citations61
US10794517B2Oct 6, 2020
System, method and apparatus for expansion coupling for pipes with sheathed grooves
NORTH AMERICAN PIPE CORP1 citations61
US10550979B2Feb 4, 2020
System for conduit squeeze retainer
NORTH AMERICAN PIPE CORP1 citations61
US11543054B2Jan 3, 2023
Pipe retrieval apparatus, system, and method
NORTH AMERICAN PIPE CORP1 citations55
US11054060B2Jul 6, 2021
Pipe retriever apparatus, system, and method
NORTH AMERICAN PIPE CORP1 citations55
US10808844B2Oct 20, 2020
System, method and apparatus for pipe restrained joint seal and lock
NORTH AMERICAN PIPE CORP0 citations51
US10746335B2Aug 18, 2020
System, method and apparatus for ramped retainer for a pipe
NORTH AMERICAN PIPE CORP0 citations51
GRACO CHILDRENS PROD INC
14 patentsUS6865756B2Mar 15, 2005
Playard
GRACO CHILDRENS PROD INC46 citations96
US7003821B2Feb 28, 2006
Child containment structure with ventilation panel
GRACO CHILDRENS PROD INC55 citations93
US8029377B2Oct 4, 2011
Child motion device
GRACO CHILDRENS PROD INC23 citations92
US7918742B2Apr 5, 2011
Motor drive feedback control for a child motion device
GRACO CHILDRENS PROD INC22 citations92
US7824273B2Nov 2, 2010
Child motion device
GRACO CHILDRENS PROD INC41 citations92
US7617550B2Nov 17, 2009
Playard
GRACO CHILDRENS PROD INC19 citations92
US7568243B2Aug 4, 2009
Playard
GRACO CHILDRENS PROD INC33 citations92
US7418746B2Sep 2, 2008
Playard
GRACO CHILDRENS PROD INC31 citations92
US7401367B2Jul 22, 2008
Playard
GRACO CHILDRENS PROD INC20 citations92
US7908686B2Mar 22, 2011
Changing table for a playard
GRACO CHILDRENS PROD INC21 citations91
US7727078B2Jun 1, 2010
Child seat canopy illumination and media projection
GRACO CHILDRENS PROD INC24 citations91
US6961968B2Nov 8, 2005
Bassinet and changing table assembly
GRACO CHILDRENS PROD INC22 citations91
US7938731B2May 10, 2011
Compartment for integrating an electronic device in a child motion device
GRACO CHILDRENS PROD INC25 citations90
US7607734B2Oct 27, 2009
Child motion device
GRACO CHILDRENS PROD INC32 citations90