Inventor

James S. Petrek

Inventor

Danville, CA, US

Overview

44→

Patents

1983–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 44 as inventor

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

B01Lprimary

B01LChemical or physical laboratory apparatus for general use39%

LOC2416%

Y10TTechnical subjects covered by former us classification9%

G01NInvestigating or analysing materials by determining their chemical or physical properties8%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers5%

A61MDevices for introducing media into, or onto, the body3%

F04BPositive-displacement machines for liquids3%

F16HGearing3%

G06FElectric digital data processing3%

G06KGraphical data reading3%

PatentTitleYear

10,751,712Pipette quickset volume adjustment mechanism2020 10,744,498Pipette quickset volume adjustment mechanism2020 10,471,422Home position locating mechanism for manual pipette and manual pipette equipped with same2019 10,380,807Pipette check system2019 9,858,729'Pipette check station'2018 9,221,046'Air displacement pipette with enhanced blowout'2015 8,524,170'Pipette and sealing tip'2013 8,397,593'Quick-set pipette with damped plunger'2013 7,819,030'Hybrid manual-electronic pipette'2010 7,788,986'Hybrid manual-electronic pipette'2010 7,770,475'Hybrid manual-electronic pipette'2010 7,726,212'Hybrid manual-electronic pipette'2010 7,175,813'Volume adjustable manual pipette with quick set volume adjustment'2007 6,967,004'Pipette with improved pipette tip and mounting shaft'2005 6,745,636'Pipette with improved pipette tip and mounting shaft'2004 6,737,023'Pipette with improved pipette tip mounting shaft'2004 6,645,433'Ergonomic return springless manual air displacement pipette'2003 6,568,288'Pipette with improved pipette tip and mounting shaft'2003 D0468832'Pipette tip'2003 D0468440'Pipette tip'2003 D0468024'Pipette tip'2002 D0461904'Pipette tip'2002 6,428,750'Volume adjustable manual pipette with quick set volume adjustment'2002 6,299,841'Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette'2001 D0448853'Pipette tip'2001 6,286,678'Refill pack for pipette tip racks and improved pipette tip support plate for use in such packs and racks'2001 D0446864'Pipette tip'2001 6,248,295'Pipette with improved pipette tip and mounting shaft combination'2001 D0441458'Pipette tip'2001 D0439986'Pipette tip'2001 D0438981'Pipette tip'2001 6,197,259'Easy eject pipette tip'2001 D0437940'Pipette tip'2001 6,171,553'Pipette with improved pipette tip and mounting shaft'2001 6,168,761'Pipette with improved pipette tip and mounting shaft'2001 D0426642'Electronic pipette'2000 D0426643'Manual pipette'2000 6,045,757'Membrane filter pipette tip'2000 5,807,524'Pipette tip with pipette surface contamination protector'1998 5,779,984'Pipette tip rack and refill pack containing large maximized volume freely nestable pipette tips'1998 5,441,702'Refill pack for pipette tip racks'1995 5,392,914'Refill pack for pipette tip racks'1995 4,457,673'Pump and actuator mechanism'1984 4,384,829'Pump and actuator mechanism'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1984Based in Berkeley, CA, US· patent location history

1995–2001Patents assigned to RAININ INSTR CO INC (18)· patent assignee history

1995–2020Based in Danville, CA, US· patent location history

2002–2015Patents assigned to RAININ INSTR LLC (18)· patent assignee history

2013Patents assigned to PETREK JAMES S (2)· patent assignee history

2018–2020Patents assigned to METTLER-TOLEDO RAININ LLC (3)· patent assignee history

2019Patents assigned to METTLER TOLEDO RAININ LLC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RAININ INSTR CO INC	18	1995–2001
RAININ INSTR LLC	18	2002–2015
METTLER-TOLEDO RAININ LLC	3	2018–2020
METTLER TOLEDO RAININ LLC	2	2019
PETREK JAMES Sself	2	2013

Locations

Location	Patents	Span
Danville, California, US	42	1995–2020
Berkeley, California, US	2	1983–1984