Inventor
KUPENTHIRARAJAN SINNATHAMBY
CA17 patents
⚠️ This page may combine multiple inventors who share the name “KUPENTHIRARAJAN SINNATHAMBY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ONTARIO LTD 420820
14 patentsUS6701994B2Mar 9, 2004
Screen frame with integral roll screen compartment
ONTARIO LTD 42082073 citations97
US6405781B2Jun 18, 2002
Screen cassette and compatible framing section therefor
ONTARIO LTD 42082066 citations95
US6267168B1Jul 31, 2001
Screen cassette and compatible framing section therefor
ONTARIO LTD 42082048 citations95
US6209610B1Apr 3, 2001
Retractable screen system and improvements therefor
ONTARIO LTD 42082061 citations95
US7210513B2May 1, 2007
Screen frame with integral roll screen compartment and improvements thereof
ONTARIO LTD 42082053 citations92
USD534059SDec 26, 2006
Bracket for a roll screen
ONTARIO LTD 42082021 citations92
USD530193SOct 17, 2006
Corner bracket for a frame
ONTARIO LTD 42082018 citations92
USD517900SMar 28, 2006
Bushing
ONTARIO LTD 42082036 citations92
USD507217SJul 12, 2005
Brake pad
ONTARIO LTD 42082037 citations92
US6679002B2Jan 20, 2004
Retractable screen system
ONTARIO LTD 42082036 citations92
USD484991SJan 6, 2004
Frame section with dual channels
ONTARIO LTD 42082023 citations92
US5687506ANov 18, 1997
Parallel balance systems
ONTARIO LTD 42082044 citations92
USD494401SAug 17, 2004
Housing for roll screen
ONTARIO LTD 42082027 citations91
USD506269SJun 14, 2005
Contoured window framing section
ONTARIO LTD 4208202 citations61
PREFERRED ENGINEERING PRODUCTS
3 patentsUS6446696B1Sep 10, 2002
Retractable screen system
PREFERRED ENGINEERING PRODUCTS42 citations91
US5946857ASep 7, 1999
Parallel balance systems
PREFERRED ENGINEERING PRODUCTS33 citations91
US6712404B2Mar 30, 2004
Simplified integral inside and outside handle and operator for a latch member for closures
PREFERRED ENGINEERING PRODUCTS10 citations72