Was that the series set in modern day Chicago (mebbe it was Canada)? And there were other, lower forms of the undead whom he depised & pitied? Brian Lumbly wrote a great Vampire Series. I believe that Vamphyr! was the first of five.

On a different tack, Dean Koontz is the finest modern author & has now co~written a Frankenstein Trilogy. For each one he partnered with a different collaborator. The first two, Prodigal Son & City of Night are already available in paperback; the third is scheduled for release next month. The twist that he's given the familiar tale is that Victor is a sadistic, mad scientist out to rid the planet of humans whom he sees as flawed by their emotions. To effect this plan, he's developed a "superior" race, of whom Deucalion (the monster has chosen his own name) was his first, primitive attempt . . . over 2ØØ yrs ago! Deucalion believes that he owes his long life to the lightning that gave him life & that Victor (now using the surname Helios) may have sloned himself, downloading his own memories into one of the New People's forms microchipped brains. The icing on the cake is twofold, it's set in New Orleans & many of the New People have started to "go wrong:" over~riding their programming & making dicisions/taking action contrary to their supposedly inviolable mandates, spontaneous self~mutilation, giving birth (a man, to a mutant twin); murdering w/o orders, believing in God.
The first Koontz book I ever read was Watchers, about genetic testing on dogs & other animals. (There're four versions available on video; have to see all of 'em to get the story that Koontz wrote.) Couldn't have been a more perfect choice for the dog~lover that I am! For the most part, his plots focus on something real & then he takes it one tiny step to the left, making the resulting premise sound entirely too plausible. Many of his novels have been made into made~for~TV miniseries & are also available on DVD/VHS.
Around the same time, I discovered Robert MacCammon. Now his are definitely "out there."