yeah, not a surprise which is why i looked for it. However, I think that connection might make infringement difficult to prove, i.e. how can MNTA prove infringement done by Amphastar Nanjing Pharma?
the lobbying part is worth a giggle (contributions below). On a more serious note, I don't see any pertinent patents by these guys (i just did a quick look).
Jack Zhang (Amphastar Pharmaceuticals/CEO), (Zip code: 92120) $1000 to MCNERNEY VICTORY FUND 2010 on 09/02/10
Jack Zhang, (Zip code: 91730) $5000 to AMERICAN SUCCESS POLITICAL ACTION COMMITTEE on 08/04/09
Jack Y. Zhang (Amphastar Pharmaceuticals/Executive), (Zip code: 91730) $1000 to CONGRESSMAN WAXMAN CAMPAIGN COMMITTEE on 07/23/09
Jack Yongfeng Zhang (Amphastar Pharmaceuticals/Executive), (Zip code: 91730) $2400 to KEN CALVERT FOR CONGRESS COMMITTEE on 06/30/09
MARY ZI-PING DR. LUO (AMPHASTAN PHARMACEUTICALS/SCIENTIST), (Zip code: 91765) $2300 to MCCAIN VICTORY 2008 on 08/31/08
Mary Zi-Ping Luo (AmphaStar Pharmaceuticals/COO), (Zip code: 91765) $1000 to JOHN D. DINGELL FOR CONGRESS on 02/13/08
Youngfeng Zhang (Amphastar Pharmaceuticals/President), (Zip code: 91765) $1000 to JOHN D. DINGELL FOR CONGRESS on 02/13/08
Yongfeng Zhang (Amphastar Pharmaceuticals/President), (Zip code: 91765) $2300 to DREIER FOR CONGRESS COMMITTEE on 10/23/07
Dr. Jack Yongfeng Zhang (AmphaStar Pharmaceuticals/Executive), (Zip code: 91765) $1000 to DIANA DEGETTE FOR CONGRESS INC. on 09/28/07
Dr. Mary Ziping Luo (AmphaStar Pharmaceuticals/COO), (Zip code: 91765) $1000 to DIANA DEGETTE FOR CONGRESS INC. on 09/28/07
Jack Y. Zhang (Amphastar Pharmaceuticals/Executive), (Zip code: 91730) $1000 to CONGRESSMAN WAXMAN CAMPAIGN COMMITTEE on 06/30/07
Mary Zi-Ping Luo (Amphastar Pharmaceuticals/Executive), (Zip code: 91765) $1000 to CONGRESSMAN WAXMAN CAMPAIGN COMMITTEE on 06/30/07
Jack Yongfeng Zhang (Ampha Star/Executive), (Zip code: 91730) $1000 to PALLONE FOR CONGRESS on 06/29/07
Mary Zi-Ping Luo (N/a/Home Maker), (Zip code: 91765) $1000 to PALLONE FOR CONGRESS on 06/29/07