Rainin Instrument, LLC
74Patents
11Active
74Granted
39Portfolio score
Filing activity: Apr 3, 1981 → Jan 30, 2014 · 9 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5392914A | Refill pack for pipette tip racks | Emerging Cross-Sectional Technologies | 107 | Expired |
| USD271239S | Container and rack for pipette tips or similar article | General | 94 | Expired |
| US4779467A | Liquid-end assembly for multichannel air-displacement pipette | Physics | 86 | Expired |
| US4748859A | Disposable pipette tip | Performing Operations; Transporting | 69 | Expired |
| US6532837B1 | Pipette device with tip ejector utilizing stored energy | Performing Operations; Transporting | 69 | Expired |
| US5187990A | Method for dispensing liquids with a pipette with compensation for air pressure and surface tension | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5441702A | Refill pack for pipette tip racks | Performing Operations; Transporting | 67 | Expired |
| US6007779A | Refill pack for pipette tip racks | Performing Operations; Transporting | 65 | Expired |
| US5642816A | Pipette tip rack refill plate hold down apparatus | Performing Operations; Transporting | 63 | Expired |
| US6168761A | Pipette with improved pipette tip and mounting shaft | Performing Operations; Transporting | 59 | Expired |
| US4577760A | Apparatus for supporting pipette tips | Performing Operations; Transporting | 58 | Expired |
| US4671123A | Methods and apparatus for pipetting and/or titrating liquids using a hand held self-contained automated pipette | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6254832A | Battery powered microprocessor controlled hand portable electronic pipette | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6171553A | Pipette with improved pipette tip and mounting shaft | Performing Operations; Transporting | 54 | Expired |
| US4676377A | Enclosed pipette tip rack | Performing Operations; Transporting | 50 | Expired |
| US4905526A | Portable automated pipette for accurately pipetting and/or titrating liquids | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6197259A | Easy eject pipette tip | Performing Operations; Transporting | 47 | Expired |
| US6045757A | Membrane filter pipette tip | Physics | 46 | Expired |
| US6428750B1 | Volume adjustable manual pipette with quick set volume adjustment | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5614153A | Pipette tip ejector | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6248295A | Pipette with improved pipette tip and mounting shaft combination | Performing Operations; Transporting | 45 | Expired |
| US4616514A | Replaceable tip assembly for pipette | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6737023B1 | Pipette with improved pipette tip mounting shaft | Performing Operations; Transporting | 42 | Expired |
| USD461904S1 | Pipette tip | General | 40 | Expired |
| US6967004B2 | Pipette with improved pipette tip and mounting shaft | Emerging Cross-Sectional Technologies | 40 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.