National patent number inquiry 200520 10777.2

Assuming that the first 1 1 of the patent number you gave is correct, the results are as follows:

Energy-saving water air conditioning system-? 200520 107773.6 ? No entitlement-no annual fee paid

Indoor air ventilation device-? 200520 107777.4 ? No entitlement-no annual fee paid

A friction plate joint device in pressure plate automatic clutch? 200520 107775.5 ? No entitlement-no annual fee paid

Centrifugal control mechanism in pressure plate automatic clutch? 200520 107774.0 ? No entitlement-no annual fee paid

Two-way pressure plate automatic clutch-200520 107776. x? No entitlement-no annual fee paid

Self-generating desk lamp and self-generating lighting toolbox-? 200520 107772. 1? No entitlement-no annual fee paid

Multifunctional air conditioner-? 200520 10777 1.7 ? No entitlement-no annual fee paid

Mirror with variable picture-? 200520 107770.2 ? No entitlement-no annual fee paid

The eight patents (utility models) found above are invalid due to failure to pay the annual fee, and anyone can use them for free. The original patentee shall not mark the words "patented product" on the product.