Group 1770 — Chemical Apparatus, Separation and Purification, Liquid and Gas Contact Apparatus

Art Units in Group 1770

Art Unit Description 3YGR
1771 Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions 69%
1772 Chemistry of hydrocarbon compounds 79%
1773 Liquid purification or separation 73%
1774 Agitating 78%
1776 Gas and liquid contact apparatus 74%
1777 Liquid purification or separation 68%
1779 Liquid purification or separation 69%

Histogram of Examiner Grant Rates

Below is a weighted histogram (by number of cases) of the 3-year grant rates of the examiners in Group 1770. The average is 73% and the standard deviation is 14%.

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Comparison with TC 1700

Group 1770's grant rate is higher than that of TC 1700 and lower than that of the USPTO.

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Grant Rate Timeline

Below is the grant rate timeline for Group 1770, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.

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Disclaimer: We do not provide any guarantees as to the accuracy of the statistics presented above and under
no circumstances will we be liable for any outcome resulting from your reliance on the above statistics.

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