B60D 1/38

Technology

Patent/Pub #	Title	Filing Date	Issue/Publication Date	Patent Owner
8201843	Trailer hitch system	Feb 24, 10	Jun 19, 12	Not available
6951345	Trailer hitch alignment device	Dec 17, 03	Oct 04, 05	Not available
6494477	Automatic trailer hitch coupling apparatus	Nov 08, 01	Dec 17, 02	DANIEL C. PARKER, TRUSTEE OF DANIEL C. PARKER REVOCABLE TRUST
5579228	Steering control system for trailers	Dec 17, 93	Nov 26, 96	UNIVERSITY OF UTAH
5513870	Guidance system for use in docking a movable vehicle with a stationary target	May 24, 95	May 07, 96	HICKMAN BROTHERS PARTNERSHIP
5405160	Trailer hitch attachment apparatus	Jun 10, 92	Apr 11, 95	Not available
5203582	Separable improved trailer tongue devices	Oct 01, 91	Apr 20, 93	Not available
5009445	Trailer hitch cable puller	Oct 03, 89	Apr 23, 91	WILLIAMS INNOVATIONS, LLC

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Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Watches in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
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Number of patents in all portfolios	100 (maximum)	1000 (maximum)	2000 (maximum)	Unlimited
Follows in all categories (Watch)	10 (maximum)	50 (maximum)	500 (maximum)	Unlimited
Maximum number of portfolios	5 (maximum)	10 (maximum)	100 (maximum)	Unlimited
Maximum number of comparisons	1 (maximum)	5 (maximum)	20 (maximum)	Unlimited