Yes there is. If you search the arcihives & back issues you will find a link to the US patenet office online. From here it will tell you of every single patent that JZD himself owns (roof hinged doors, swash plate engine, etc...), and the patents for designs that GM owns, yet credit in the description is given to JZD as the engineer. While the Mercedes 300SL, and the Bricklin both have gullwings, the companies didn't bother to patent the idea @ the time. Remember Alexander Grahm Bell didn't invent the telephone, he just beat the guy who did to the patent office! Yes there are kit cars that have gullwings, though maybe only 2-3 in production currently and/or after the patent was granted to the John Z. De Lorean Corp. back in '75 I think. Why doesn't JZD sue? Well, if you were planing on building a new company (or reviving an old one) how bad would it look for you to sue a few small companies? Your finacial gain wouldn't make up for the loss of positive public opinion. -Robert vin 6585 --- In dmcnews@xxxxxxxxxxx, jvdmc12@xxxx wrote: > Just out of curiosity and wonders, how would John DeLorean hold a patent on > gull wing doors in which he did have the 1st concept?? There is the glorious > 1957 (i believe the year was) Mercedes 300SL Gullwing, and then there is > Malcom Bricklin's 1974-75 SV-1 , all which were produced before the DeLorean > car.... i give credit without doubt that JZD's gullwing doors on the DMC-12 > are nearly the best designed in measurements and space needed to open the > doors, But yet still i have seen many articles even with kit cars containing > Gullwing doors, any further info. to justify if JZD truely hold such a patent? > > -Jeff Valenta