Inventor

Keith Ratcliff

Inventor

Sandy Hook, CT, US

Overview

1989–2015

Patent span

Human necessities

Primary field (CPC A)

Patents· 76 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Bprimary

A61BDiagnosis77%

A61FFilters implantable into blood vessels9%

A61MDevices for introducing media into, or onto, the body5%

Y10TTechnical subjects covered by former us classification5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

PatentTitleYear

9,173,658'Apparatus and method for performing a bypass procedure in a digestive system'2015 8,968,278'Robotic arms DLUs for performing surgical tasks'2015 8,663,203'Robotic arms DLUs for performing surgical tasks'2014 8,512,318'Robotic arms DLUs for performing surgical tasks'2013 8,317,809'Apparatus and method for performing a bypass procedure in a digestive system'2012 8,206,415'Arterial hole closure apparatus'2012 7,901,416'Apparatus and method for performing a bypass procedure in a digestive system'2011 7,891,533'Surgical stapling apparatus'2011 7,861,907'Surgical stapling apparatus'2011 7,572,266'Clip applier tool having a discharge configuration'2009 7,543,731'Surgical stapling apparatus'2009 7,464,848'Surgical stapling apparatus'2008 7,296,724'Surgical stapling apparatus'2007 7,179,267'Apparatus and method for performing a bypass procedure in a digestive system'2007 7,041,055'Instruments and methods for use in laparoscopic surgery'2006 6,877,647'Surgical stapling apparatus'2005 6,827,712'Robotic arm DLUs for performing surgical tasks'2004 6,733,445'Surgical retractor'2004 6,676,685'Arterial hole closure apparatus'2004 6,676,671'Stapling apparatus and method for heart valve replacement'2004 6,644,532'Surgical stapling apparatus'2003 6,619,529'Surgical stapling apparatus'2003 6,592,593'Endovascular fastener applicator'2003 6,537,212'Surgical retractor'2003 6,250,532'Surgical stapling apparatus'2001 6,248,124'Arterial hole closure apparatus'2001 6,231,565'Robotic arm DLUs for performing surgical tasks'2001 6,213,940'Surgical retractor including coil spring suture mount'2001 6,203,553'Stapling apparatus and method for heart valve replacement'2001 5,968,090'Endovascular graft and method'1999 5,967,973'Surgical retractor and method of surgery'1999 5,947,896'Heart stabilizer apparatus and method for use'1999 5,913,870'Surgical dissector'1999 5,910,155'Vascular wound closure system'1999 5,878,937'Apparatus for applying surgical fasteners'1999 5,860,987'Surgical retractor'1999 5,833,698'Anastomosis instrument and method'1998 5,800,445'Tissue tagging device'1998 5,755,732'Surgical instruments useful for endoscopic spinal procedures'1998 5,709,697'Apparatus and method for removing tissue'1998 5,706,997'Apparatus for applying surgical fasteners'1998 5,707,380'Anastomosis instrument and method'1998 5,697,889'Surgical instruments useful for endoscopic spinal procedures'1997 5,645,551'Apparatus and method for applying surgical clips'1997 5,636,780'Self contained gas powered surgical apparatus'1997 5,620,458'Surgical instruments useful for endoscopic spinal procedures'1997 5,599,279'Surgical instruments and method useful for endoscopic spinal procedures'1997 5,569,283'Surgical cutting instrument with guarded blade'1996 5,562,689'Apparatus and method for applying and adjusting an anchoring device'1996 5,562,690'Apparatus and method for performing compressional anastomoses'1996 5,558,266'Apparatus for applying surgical fasteners'1996 5,554,169'Method for placing staples in laparoscopic or endoscopic procedures'1996 5,549,617'Apparatus and method for applying and adjusting an anchoring device'1996 5,509,596'Apparatus for applying surgical fasteners'1996 5,507,754'Apparatus and method for applying and adjusting an anchoring device'1996 5,482,197'Articulating surgical cartridge assembly'1996 5,476,206'Apparatus and method for placing staples in laparoscopic or endoscopic procedures'1995 5,456,401'Surgical apparatus having articulation mechanism'1995 5,431,322'Self contained gas powered surgical apparatus'1995 5,425,745'Apparatus and method for placing staples in laparoscopic or endoscopic procedures'1995 5,413,268'Apparatus and method for placing stables in laparoscopic or endoscopic procedures'1995 5,392,979'Surgical stapler apparatus'1995 5,383,881'Safety device for use with endoscopic instrumentation'1995 5,358,506'Approximating apparatus for surgical jaw structure'1994 5,336,232'Approximating apparatus for surgical jaw structure and method of using the same'1994 5,326,013'Self contained gas powered surgical apparatus'1994 5,318,221'Apparatus and method for placing staples in laparoscopic or endoscopic procedures'1994 5,285,944'Surgical stapler apparatus'1994 5,158,222'Surgical stapler apparatus'1992 5,119,983'Surgical stapler apparatus'1992 5,100,420'Apparatus and method for applying surgical clips in laparoscopic or endoscopic procedures'1992 5,084,057'Apparatus and method for applying surgical clips in laparoscopic or endoscopic procedures'1992 5,062,563'Fascia stapler'1991 5,040,715'Apparatus and method for placing staples in laparoscopic or endoscopic procedures'1991 4,950,284'Fascia clip'1990 D0304234'Annular anvil for a surgical stapler'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2009Patents assigned to UNITED STATES SURGICAL CORP (58)· patent assignee history

1989–2009Based in Sandy Hook, CT, US· patent location history

1998–2015Based in Newtown, CT, US· patent location history

1998–2013Based in Newton, CT, US· patent location history

1999–2004Patents assigned to US SURGICAL (3)· patent assignee history

2004–2012Patents assigned to TYCO HEALTHCARE (6)· patent assignee history

2006–2015Patents assigned to RATCLIFF KEITH (7)· patent assignee history

2012–2015Patents assigned to COVIDIEN LP (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNITED STATES SURGICAL CORP	58	1989–2009
RATCLIFF KEITHself	7	2006–2015
TYCO HEALTHCARE	6	2004–2012
COVIDIEN LP	5	2012–2015
US SURGICAL	3	1999–2004

Locations

Location	Patents	Span
Sandy Hook, CT, US	46	1989–2009
Newtown, CT, US	26	1998–2015
Newton, CT, US	4	1998–2013